1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include <sys/reboot.h>
28 #include <sys/ioctl.h>
32 #include <sys/socket.h>
35 #include <sys/prctl.h>
36 #include <dbus/dbus.h>
38 #include <systemd/sd-daemon.h>
39 #include <systemd/sd-shutdown.h>
45 #include "utmp-wtmp.h"
48 #include "path-util.h"
50 #include "dbus-common.h"
51 #include "cgroup-show.h"
52 #include "cgroup-util.h"
54 #include "path-lookup.h"
55 #include "conf-parser.h"
56 #include "exit-status.h"
57 #include "bus-errors.h"
59 #include "unit-name.h"
61 #include "spawn-ask-password-agent.h"
62 #include "spawn-polkit-agent.h"
64 #include "logs-show.h"
65 #include "path-util.h"
67 static const char *arg_type = NULL;
68 static const char *arg_load_state = NULL;
69 static char **arg_property = NULL;
70 static bool arg_all = false;
71 static const char *arg_job_mode = "replace";
72 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
73 static bool arg_no_block = false;
74 static bool arg_no_legend = false;
75 static bool arg_no_pager = false;
76 static bool arg_no_wtmp = false;
77 static bool arg_no_sync = false;
78 static bool arg_no_wall = false;
79 static bool arg_no_reload = false;
80 static bool arg_dry = false;
81 static bool arg_quiet = false;
82 static bool arg_full = false;
83 static int arg_force = 0;
84 static bool arg_ask_password = true;
85 static bool arg_failed = false;
86 static bool arg_runtime = false;
87 static char **arg_wall = NULL;
88 static const char *arg_kill_who = NULL;
89 static const char *arg_kill_mode = NULL;
90 static int arg_signal = SIGTERM;
91 static const char *arg_root = NULL;
92 static usec_t arg_when = 0;
113 ACTION_CANCEL_SHUTDOWN,
115 } arg_action = ACTION_SYSTEMCTL;
121 static enum transport {
125 } arg_transport = TRANSPORT_NORMAL;
126 static const char *arg_host = NULL;
127 static bool arg_follow = false;
128 static unsigned arg_lines = 10;
129 static OutputMode arg_output = OUTPUT_SHORT;
131 static bool private_bus = false;
133 static int daemon_reload(DBusConnection *bus, char **args);
134 static void halt_now(enum action a);
136 static bool on_tty(void) {
139 /* Note that this is invoked relatively early, before we start
140 * the pager. That means the value we return reflects whether
141 * we originally were started on a tty, not if we currently
142 * are. But this is intended, since we want colour and so on
143 * when run in our own pager. */
145 if (_unlikely_(t < 0))
146 t = isatty(STDOUT_FILENO) > 0;
151 static void pager_open_if_enabled(void) {
153 /* Cache result before we open the pager */
162 static void ask_password_agent_open_if_enabled(void) {
164 /* Open the password agent as a child process if necessary */
166 if (!arg_ask_password)
169 if (arg_scope != UNIT_FILE_SYSTEM)
172 ask_password_agent_open();
176 static void polkit_agent_open_if_enabled(void) {
178 /* Open the polkit agent as a child process if necessary */
180 if (!arg_ask_password)
183 if (arg_scope != UNIT_FILE_SYSTEM)
190 static const char *ansi_highlight_red(bool b) {
195 return b ? ANSI_HIGHLIGHT_RED_ON : ANSI_HIGHLIGHT_OFF;
198 static const char *ansi_highlight_green(bool b) {
203 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
206 static bool error_is_no_service(const DBusError *error) {
209 if (!dbus_error_is_set(error))
212 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
215 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
218 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
221 static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
224 if (!dbus_error_is_set(error))
227 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
228 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
229 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
230 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
231 return EXIT_NOPERMISSION;
233 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
234 return EXIT_NOTINSTALLED;
236 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
237 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
238 return EXIT_NOTIMPLEMENTED;
240 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
241 return EXIT_NOTCONFIGURED;
249 static void warn_wall(enum action a) {
250 static const char *table[_ACTION_MAX] = {
251 [ACTION_HALT] = "The system is going down for system halt NOW!",
252 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
253 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
254 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
255 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
256 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
265 p = strv_join(arg_wall, " ");
267 log_error("Failed to join strings.");
283 utmp_wall(table[a], NULL);
286 static bool avoid_bus(void) {
288 if (running_in_chroot() > 0)
291 if (sd_booted() <= 0)
294 if (!isempty(arg_root))
297 if (arg_scope == UNIT_FILE_GLOBAL)
305 const char *description;
306 const char *load_state;
307 const char *active_state;
308 const char *sub_state;
309 const char *following;
310 const char *unit_path;
312 const char *job_type;
313 const char *job_path;
316 static int compare_unit_info(const void *a, const void *b) {
318 const struct unit_info *u = a, *v = b;
320 d1 = strrchr(u->id, '.');
321 d2 = strrchr(v->id, '.');
326 if ((r = strcasecmp(d1, d2)) != 0)
330 return strcasecmp(u->id, v->id);
333 static bool output_show_unit(const struct unit_info *u) {
337 return streq(u->active_state, "failed");
339 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
340 streq(dot+1, arg_type))) &&
341 (!arg_load_state || streq(u->load_state, arg_load_state)) &&
342 (arg_all || !(streq(u->active_state, "inactive")
343 || u->following[0]) || u->job_id > 0);
346 static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
347 unsigned id_len, max_id_len, active_len, sub_len, job_len, desc_len, n_shown = 0;
348 const struct unit_info *u;
350 max_id_len = sizeof("UNIT")-1;
351 active_len = sizeof("ACTIVE")-1;
352 sub_len = sizeof("SUB")-1;
353 job_len = sizeof("JOB")-1;
356 for (u = unit_infos; u < unit_infos + c; u++) {
357 if (!output_show_unit(u))
360 max_id_len = MAX(max_id_len, strlen(u->id));
361 active_len = MAX(active_len, strlen(u->active_state));
362 sub_len = MAX(sub_len, strlen(u->sub_state));
364 job_len = MAX(job_len, strlen(u->job_type));
369 id_len = MIN(max_id_len, 25);
370 basic_len = 5 + id_len + 6 + active_len + sub_len + job_len;
371 if (basic_len < (unsigned) columns()) {
372 unsigned extra_len, incr;
373 extra_len = columns() - basic_len;
374 /* Either UNIT already got 25, or is fully satisfied.
375 * Grant up to 25 to DESC now. */
376 incr = MIN(extra_len, 25);
379 /* split the remaining space between UNIT and DESC,
380 * but do not give UNIT more than it needs. */
382 incr = MIN(extra_len / 2, max_id_len - id_len);
384 desc_len += extra_len - incr;
390 if (!arg_no_legend) {
391 printf("%-*s %-6s %-*s %-*s %-*s ", id_len, "UNIT", "LOAD",
392 active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
393 if (!arg_full && arg_no_pager)
394 printf("%.*s\n", desc_len, "DESCRIPTION");
396 printf("%s\n", "DESCRIPTION");
399 for (u = unit_infos; u < unit_infos + c; u++) {
401 const char *on_loaded, *off_loaded;
402 const char *on_active, *off_active;
404 if (!output_show_unit(u))
409 if (streq(u->load_state, "error")) {
410 on_loaded = ansi_highlight_red(true);
411 off_loaded = ansi_highlight_red(false);
413 on_loaded = off_loaded = "";
415 if (streq(u->active_state, "failed")) {
416 on_active = ansi_highlight_red(true);
417 off_active = ansi_highlight_red(false);
419 on_active = off_active = "";
421 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
423 printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s ",
424 id_len, e ? e : u->id,
425 on_loaded, u->load_state, off_loaded,
426 on_active, active_len, u->active_state,
427 sub_len, u->sub_state, off_active,
428 job_len, u->job_id ? u->job_type : "");
429 if (!arg_full && arg_no_pager)
430 printf("%.*s\n", desc_len, u->description);
432 printf("%s\n", u->description);
437 if (!arg_no_legend) {
438 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
439 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
440 "SUB = The low-level unit activation state, values depend on unit type.\n"
441 "JOB = Pending job for the unit.\n");
444 printf("\n%u units listed.\n", n_shown);
446 printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown);
450 static int list_units(DBusConnection *bus, char **args) {
451 DBusMessage *m = NULL, *reply = NULL;
454 DBusMessageIter iter, sub, sub2;
455 unsigned c = 0, n_units = 0;
456 struct unit_info *unit_infos = NULL;
458 dbus_error_init(&error);
462 pager_open_if_enabled();
464 if (!(m = dbus_message_new_method_call(
465 "org.freedesktop.systemd1",
466 "/org/freedesktop/systemd1",
467 "org.freedesktop.systemd1.Manager",
469 log_error("Could not allocate message.");
473 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
474 log_error("Failed to issue method call: %s", bus_error_message(&error));
479 if (!dbus_message_iter_init(reply, &iter) ||
480 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
481 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
482 log_error("Failed to parse reply.");
487 dbus_message_iter_recurse(&iter, &sub);
489 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
492 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
493 log_error("Failed to parse reply.");
501 n_units = MAX(2*c, 16);
502 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
505 log_error("Failed to allocate unit array.");
515 dbus_message_iter_recurse(&sub, &sub2);
517 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
518 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
519 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
520 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
521 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
522 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
523 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
524 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
525 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
526 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
527 log_error("Failed to parse reply.");
532 dbus_message_iter_next(&sub);
537 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
538 output_units_list(unit_infos, c);
545 dbus_message_unref(m);
548 dbus_message_unref(reply);
552 dbus_error_free(&error);
557 static int compare_unit_file_list(const void *a, const void *b) {
559 const UnitFileList *u = a, *v = b;
561 d1 = strrchr(u->path, '.');
562 d2 = strrchr(v->path, '.');
567 r = strcasecmp(d1, d2);
572 return strcasecmp(path_get_file_name(u->path), path_get_file_name(v->path));
575 static bool output_show_unit_file(const UnitFileList *u) {
578 return !arg_type || ((dot = strrchr(u->path, '.')) && streq(dot+1, arg_type));
581 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
582 unsigned max_id_len, id_cols, state_cols, n_shown = 0;
583 const UnitFileList *u;
585 max_id_len = sizeof("UNIT FILE")-1;
586 state_cols = sizeof("STATE")-1;
587 for (u = units; u < units + c; u++) {
588 if (!output_show_unit_file(u))
591 max_id_len = MAX(max_id_len, strlen(path_get_file_name(u->path)));
592 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
597 id_cols = MIN(max_id_len, 25);
598 basic_cols = 1 + id_cols + state_cols;
599 if (basic_cols < (unsigned) columns())
600 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
602 id_cols = max_id_len;
605 printf("%-*s %-*s\n", id_cols, "UNIT FILE", state_cols, "STATE");
607 for (u = units; u < units + c; u++) {
609 const char *on, *off;
612 if (!output_show_unit_file(u))
617 if (u->state == UNIT_FILE_MASKED ||
618 u->state == UNIT_FILE_MASKED_RUNTIME ||
619 u->state == UNIT_FILE_DISABLED) {
620 on = ansi_highlight_red(true);
621 off = ansi_highlight_red(false);
622 } else if (u->state == UNIT_FILE_ENABLED) {
623 on = ansi_highlight_green(true);
624 off = ansi_highlight_green(false);
628 id = path_get_file_name(u->path);
630 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
632 printf("%-*s %s%-*s%s\n",
634 on, state_cols, unit_file_state_to_string(u->state), off);
640 printf("\n%u unit files listed.\n", n_shown);
643 static int list_unit_files(DBusConnection *bus, char **args) {
644 DBusMessage *m = NULL, *reply = NULL;
647 DBusMessageIter iter, sub, sub2;
648 unsigned c = 0, n_units = 0;
649 UnitFileList *units = NULL;
651 dbus_error_init(&error);
653 pager_open_if_enabled();
660 h = hashmap_new(string_hash_func, string_compare_func);
662 log_error("Out of memory");
666 r = unit_file_get_list(arg_scope, arg_root, h);
668 unit_file_list_free(h);
669 log_error("Failed to get unit file list: %s", strerror(-r));
673 n_units = hashmap_size(h);
674 units = new(UnitFileList, n_units);
676 unit_file_list_free(h);
677 log_error("Out of memory");
681 HASHMAP_FOREACH(u, h, i) {
682 memcpy(units + c++, u, sizeof(UnitFileList));
690 m = dbus_message_new_method_call(
691 "org.freedesktop.systemd1",
692 "/org/freedesktop/systemd1",
693 "org.freedesktop.systemd1.Manager",
696 log_error("Could not allocate message.");
700 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
702 log_error("Failed to issue method call: %s", bus_error_message(&error));
707 if (!dbus_message_iter_init(reply, &iter) ||
708 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
709 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
710 log_error("Failed to parse reply.");
715 dbus_message_iter_recurse(&iter, &sub);
717 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
721 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
722 log_error("Failed to parse reply.");
730 n_units = MAX(2*c, 16);
731 w = realloc(units, sizeof(struct UnitFileList) * n_units);
734 log_error("Failed to allocate unit array.");
744 dbus_message_iter_recurse(&sub, &sub2);
746 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->path, true) < 0 ||
747 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, false) < 0) {
748 log_error("Failed to parse reply.");
753 u->state = unit_file_state_from_string(state);
755 dbus_message_iter_next(&sub);
761 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
762 output_unit_file_list(units, c);
769 dbus_message_unref(m);
772 dbus_message_unref(reply);
776 dbus_error_free(&error);
781 static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
782 static const char * const colors[] = {
783 "Requires", "[color=\"black\"]",
784 "RequiresOverridable", "[color=\"black\"]",
785 "Requisite", "[color=\"darkblue\"]",
786 "RequisiteOverridable", "[color=\"darkblue\"]",
787 "Wants", "[color=\"darkgrey\"]",
788 "Conflicts", "[color=\"red\"]",
789 "ConflictedBy", "[color=\"red\"]",
790 "After", "[color=\"green\"]"
793 const char *c = NULL;
800 for (i = 0; i < ELEMENTSOF(colors); i += 2)
801 if (streq(colors[i], prop)) {
809 if (arg_dot != DOT_ALL)
810 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
813 switch (dbus_message_iter_get_arg_type(iter)) {
815 case DBUS_TYPE_ARRAY:
817 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
820 dbus_message_iter_recurse(iter, &sub);
822 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
825 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
826 dbus_message_iter_get_basic(&sub, &s);
827 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
829 dbus_message_iter_next(&sub);
839 static int dot_one(DBusConnection *bus, const char *name, const char *path) {
840 DBusMessage *m = NULL, *reply = NULL;
841 const char *interface = "org.freedesktop.systemd1.Unit";
844 DBusMessageIter iter, sub, sub2, sub3;
849 dbus_error_init(&error);
851 if (!(m = dbus_message_new_method_call(
852 "org.freedesktop.systemd1",
854 "org.freedesktop.DBus.Properties",
856 log_error("Could not allocate message.");
861 if (!dbus_message_append_args(m,
862 DBUS_TYPE_STRING, &interface,
863 DBUS_TYPE_INVALID)) {
864 log_error("Could not append arguments to message.");
869 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
870 log_error("Failed to issue method call: %s", bus_error_message(&error));
875 if (!dbus_message_iter_init(reply, &iter) ||
876 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
877 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
878 log_error("Failed to parse reply.");
883 dbus_message_iter_recurse(&iter, &sub);
885 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
888 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
889 log_error("Failed to parse reply.");
894 dbus_message_iter_recurse(&sub, &sub2);
896 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
897 log_error("Failed to parse reply.");
902 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
903 log_error("Failed to parse reply.");
908 dbus_message_iter_recurse(&sub2, &sub3);
910 if (dot_one_property(name, prop, &sub3)) {
911 log_error("Failed to parse reply.");
916 dbus_message_iter_next(&sub);
923 dbus_message_unref(m);
926 dbus_message_unref(reply);
928 dbus_error_free(&error);
933 static int dot(DBusConnection *bus, char **args) {
934 DBusMessage *m = NULL, *reply = NULL;
937 DBusMessageIter iter, sub, sub2;
939 dbus_error_init(&error);
943 if (!(m = dbus_message_new_method_call(
944 "org.freedesktop.systemd1",
945 "/org/freedesktop/systemd1",
946 "org.freedesktop.systemd1.Manager",
948 log_error("Could not allocate message.");
952 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
953 log_error("Failed to issue method call: %s", bus_error_message(&error));
958 if (!dbus_message_iter_init(reply, &iter) ||
959 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
960 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
961 log_error("Failed to parse reply.");
966 printf("digraph systemd {\n");
968 dbus_message_iter_recurse(&iter, &sub);
969 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
970 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
972 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
973 log_error("Failed to parse reply.");
978 dbus_message_iter_recurse(&sub, &sub2);
980 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
981 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
982 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
983 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
984 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
985 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
986 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
987 log_error("Failed to parse reply.");
992 if ((r = dot_one(bus, id, unit_path)) < 0)
995 /* printf("\t\"%s\";\n", id); */
996 dbus_message_iter_next(&sub);
1001 log_info(" Color legend: black = Requires\n"
1002 " dark blue = Requisite\n"
1003 " dark grey = Wants\n"
1004 " red = Conflicts\n"
1005 " green = After\n");
1008 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
1009 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
1015 dbus_message_unref(m);
1018 dbus_message_unref(reply);
1020 dbus_error_free(&error);
1025 static int list_jobs(DBusConnection *bus, char **args) {
1026 DBusMessage *m = NULL, *reply = NULL;
1029 DBusMessageIter iter, sub, sub2;
1032 dbus_error_init(&error);
1036 pager_open_if_enabled();
1038 if (!(m = dbus_message_new_method_call(
1039 "org.freedesktop.systemd1",
1040 "/org/freedesktop/systemd1",
1041 "org.freedesktop.systemd1.Manager",
1043 log_error("Could not allocate message.");
1047 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1048 log_error("Failed to issue method call: %s", bus_error_message(&error));
1053 if (!dbus_message_iter_init(reply, &iter) ||
1054 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1055 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
1056 log_error("Failed to parse reply.");
1061 dbus_message_iter_recurse(&iter, &sub);
1064 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
1066 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1067 const char *name, *type, *state, *job_path, *unit_path;
1071 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
1072 log_error("Failed to parse reply.");
1077 dbus_message_iter_recurse(&sub, &sub2);
1079 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
1080 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
1081 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
1082 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
1083 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
1084 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
1085 log_error("Failed to parse reply.");
1090 e = arg_full ? NULL : ellipsize(name, 25, 33);
1091 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
1096 dbus_message_iter_next(&sub);
1100 printf("\n%u jobs listed.\n", k);
1106 dbus_message_unref(m);
1109 dbus_message_unref(reply);
1111 dbus_error_free(&error);
1116 static int load_unit(DBusConnection *bus, char **args) {
1117 DBusMessage *m = NULL;
1122 dbus_error_init(&error);
1127 STRV_FOREACH(name, args+1) {
1132 if (!(m = dbus_message_new_method_call(
1133 "org.freedesktop.systemd1",
1134 "/org/freedesktop/systemd1",
1135 "org.freedesktop.systemd1.Manager",
1137 log_error("Could not allocate message.");
1142 n = unit_name_mangle(*name);
1143 b = dbus_message_append_args(m,
1144 DBUS_TYPE_STRING, n ? &n : name,
1148 log_error("Could not append arguments to message.");
1153 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1155 log_error("Failed to issue method call: %s", bus_error_message(&error));
1160 dbus_message_unref(m);
1161 dbus_message_unref(reply);
1170 dbus_message_unref(m);
1172 dbus_error_free(&error);
1177 static int cancel_job(DBusConnection *bus, char **args) {
1178 DBusMessage *m = NULL, *reply = NULL;
1183 dbus_error_init(&error);
1188 if (strv_length(args) <= 1)
1189 return daemon_reload(bus, args);
1191 STRV_FOREACH(name, args+1) {
1195 if (!(m = dbus_message_new_method_call(
1196 "org.freedesktop.systemd1",
1197 "/org/freedesktop/systemd1",
1198 "org.freedesktop.systemd1.Manager",
1200 log_error("Could not allocate message.");
1205 if ((r = safe_atou(*name, &id)) < 0) {
1206 log_error("Failed to parse job id: %s", strerror(-r));
1210 assert_cc(sizeof(uint32_t) == sizeof(id));
1211 if (!dbus_message_append_args(m,
1212 DBUS_TYPE_UINT32, &id,
1213 DBUS_TYPE_INVALID)) {
1214 log_error("Could not append arguments to message.");
1219 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1220 log_error("Failed to issue method call: %s", bus_error_message(&error));
1225 if (!dbus_message_get_args(reply, &error,
1226 DBUS_TYPE_OBJECT_PATH, &path,
1227 DBUS_TYPE_INVALID)) {
1228 log_error("Failed to parse reply: %s", bus_error_message(&error));
1233 dbus_message_unref(m);
1234 if (!(m = dbus_message_new_method_call(
1235 "org.freedesktop.systemd1",
1237 "org.freedesktop.systemd1.Job",
1239 log_error("Could not allocate message.");
1244 dbus_message_unref(reply);
1245 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1246 log_error("Failed to issue method call: %s", bus_error_message(&error));
1251 dbus_message_unref(m);
1252 dbus_message_unref(reply);
1260 dbus_message_unref(m);
1263 dbus_message_unref(reply);
1265 dbus_error_free(&error);
1270 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
1271 DBusMessage *m = NULL, *reply = NULL;
1272 dbus_bool_t b = FALSE;
1273 DBusMessageIter iter, sub;
1275 *interface = "org.freedesktop.systemd1.Unit",
1276 *property = "NeedDaemonReload",
1281 /* We ignore all errors here, since this is used to show a warning only */
1283 m = dbus_message_new_method_call(
1284 "org.freedesktop.systemd1",
1285 "/org/freedesktop/systemd1",
1286 "org.freedesktop.systemd1.Manager",
1291 n = unit_name_mangle(unit);
1292 k = dbus_message_append_args(m,
1293 DBUS_TYPE_STRING, n ? (const char**) &n : &unit,
1299 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL);
1303 if (!dbus_message_get_args(reply, NULL,
1304 DBUS_TYPE_OBJECT_PATH, &path,
1308 dbus_message_unref(m);
1309 m = dbus_message_new_method_call(
1310 "org.freedesktop.systemd1",
1312 "org.freedesktop.DBus.Properties",
1317 if (!dbus_message_append_args(m,
1318 DBUS_TYPE_STRING, &interface,
1319 DBUS_TYPE_STRING, &property,
1320 DBUS_TYPE_INVALID)) {
1324 dbus_message_unref(reply);
1325 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL);
1329 if (!dbus_message_iter_init(reply, &iter) ||
1330 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1333 dbus_message_iter_recurse(&iter, &sub);
1335 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1338 dbus_message_iter_get_basic(&sub, &b);
1342 dbus_message_unref(m);
1345 dbus_message_unref(reply);
1350 typedef struct WaitData {
1355 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1363 dbus_error_init(&error);
1365 log_debug("Got D-Bus request: %s.%s() on %s",
1366 dbus_message_get_interface(message),
1367 dbus_message_get_member(message),
1368 dbus_message_get_path(message));
1370 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1371 log_error("Warning! D-Bus connection terminated.");
1372 dbus_connection_close(connection);
1374 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1376 const char *path, *result, *unit;
1377 dbus_bool_t success = true;
1379 if (dbus_message_get_args(message, &error,
1380 DBUS_TYPE_UINT32, &id,
1381 DBUS_TYPE_OBJECT_PATH, &path,
1382 DBUS_TYPE_STRING, &unit,
1383 DBUS_TYPE_STRING, &result,
1384 DBUS_TYPE_INVALID)) {
1387 p = set_remove(d->set, (char*) path);
1391 d->result = strdup(result);
1396 dbus_error_free(&error);
1397 if (dbus_message_get_args(message, &error,
1398 DBUS_TYPE_UINT32, &id,
1399 DBUS_TYPE_OBJECT_PATH, &path,
1400 DBUS_TYPE_STRING, &result,
1401 DBUS_TYPE_INVALID)) {
1404 /* Compatibility with older systemd versions <
1405 * 183 during upgrades. This should be dropped
1407 p = set_remove(d->set, (char*) path);
1411 d->result = strdup(result);
1416 dbus_error_free(&error);
1417 if (dbus_message_get_args(message, &error,
1418 DBUS_TYPE_UINT32, &id,
1419 DBUS_TYPE_OBJECT_PATH, &path,
1420 DBUS_TYPE_BOOLEAN, &success,
1421 DBUS_TYPE_INVALID)) {
1424 /* Compatibility with older systemd versions <
1425 * 19 during upgrades. This should be dropped
1428 p = set_remove(d->set, (char*) path);
1432 d->result = strdup("failed");
1438 log_error("Failed to parse message: %s", bus_error_message(&error));
1442 dbus_error_free(&error);
1443 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1446 static int enable_wait_for_jobs(DBusConnection *bus) {
1454 dbus_error_init(&error);
1455 dbus_bus_add_match(bus,
1457 "sender='org.freedesktop.systemd1',"
1458 "interface='org.freedesktop.systemd1.Manager',"
1459 "member='JobRemoved',"
1460 "path='/org/freedesktop/systemd1'",
1463 if (dbus_error_is_set(&error)) {
1464 log_error("Failed to add match: %s", bus_error_message(&error));
1465 dbus_error_free(&error);
1469 /* This is slightly dirty, since we don't undo the match registrations. */
1473 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1483 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
1484 log_error("Failed to add filter.");
1489 while (!set_isempty(s) &&
1490 dbus_connection_read_write_dispatch(bus, -1))
1493 if (!arg_quiet && d.result) {
1494 if (streq(d.result, "timeout"))
1495 log_error("Job timed out.");
1496 else if (streq(d.result, "canceled"))
1497 log_error("Job canceled.");
1498 else if (streq(d.result, "dependency"))
1499 log_error("A dependency job failed. See system journal for details.");
1500 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1501 log_error("Job failed. See system journal and 'systemctl status' for details.");
1504 if (streq_ptr(d.result, "timeout"))
1506 else if (streq_ptr(d.result, "canceled"))
1508 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1516 /* This is slightly dirty, since we don't undo the filter registration. */
1521 static int check_one_unit(DBusConnection *bus, char *name, bool quiet) {
1522 DBusMessage *m = NULL, *reply = NULL;
1524 DBusMessageIter iter, sub;
1526 *interface = "org.freedesktop.systemd1.Unit",
1527 *property = "ActiveState";
1528 const char *path = NULL;
1530 int r = 3; /* According to LSB: "program is not running" */
1537 dbus_error_init(&error);
1539 m = dbus_message_new_method_call(
1540 "org.freedesktop.systemd1",
1541 "/org/freedesktop/systemd1",
1542 "org.freedesktop.systemd1.Manager",
1545 log_error("Could not allocate message.");
1550 n = unit_name_mangle(name);
1551 b = dbus_message_append_args(m,
1552 DBUS_TYPE_STRING, n ? &n : &name,
1556 log_error("Could not append arguments to message.");
1561 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1563 /* Hmm, cannot figure out anything about this unit... */
1570 if (!dbus_message_get_args(reply, &error,
1571 DBUS_TYPE_OBJECT_PATH, &path,
1572 DBUS_TYPE_INVALID)) {
1573 log_error("Failed to parse reply: %s", bus_error_message(&error));
1578 dbus_message_unref(m);
1579 m = dbus_message_new_method_call(
1580 "org.freedesktop.systemd1",
1582 "org.freedesktop.DBus.Properties",
1585 log_error("Could not allocate message.");
1590 if (!dbus_message_append_args(m,
1591 DBUS_TYPE_STRING, &interface,
1592 DBUS_TYPE_STRING, &property,
1593 DBUS_TYPE_INVALID)) {
1594 log_error("Could not append arguments to message.");
1599 dbus_message_unref(reply);
1600 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1602 log_error("Failed to issue method call: %s", bus_error_message(&error));
1607 if (!dbus_message_iter_init(reply, &iter) ||
1608 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1609 log_error("Failed to parse reply.");
1614 dbus_message_iter_recurse(&iter, &sub);
1616 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1617 log_error("Failed to parse reply.");
1622 dbus_message_iter_get_basic(&sub, &state);
1627 if (streq(state, "active") || streq(state, "reloading"))
1632 dbus_message_unref(m);
1635 dbus_message_unref(reply);
1637 dbus_error_free(&error);
1642 static void check_triggering_units(
1643 DBusConnection *bus,
1644 const char *unit_name) {
1647 DBusMessage *m = NULL, *reply = NULL;
1648 DBusMessageIter iter, sub;
1649 char *service_trigger = NULL;
1650 const char *interface = "org.freedesktop.systemd1.Unit",
1651 *triggered_by_property = "TriggeredBy";
1653 char *unit_path = NULL, *n = NULL;
1654 bool print_warning_label = true;
1656 dbus_error_init(&error);
1658 n = unit_name_mangle(unit_name);
1659 unit_path = unit_dbus_path_from_name(n ? n : unit_name);
1662 log_error("Could not allocate dbus path.");
1666 m = dbus_message_new_method_call("org.freedesktop.systemd1",
1668 "org.freedesktop.DBus.Properties",
1671 log_error("Could not allocate message.");
1675 if (!dbus_message_append_args(m,
1676 DBUS_TYPE_STRING, &interface,
1677 DBUS_TYPE_STRING, &triggered_by_property,
1678 DBUS_TYPE_INVALID)) {
1679 log_error("Could not append arguments to message.");
1683 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1685 log_error("Failed to issue method call: %s", bus_error_message(&error));
1689 if (!dbus_message_iter_init(reply, &iter) ||
1690 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1691 log_error("Failed to parse reply: %s", bus_error_message(&error));
1696 dbus_message_iter_recurse(&iter, &sub);
1697 dbus_message_iter_recurse(&sub, &iter);
1700 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1703 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1704 log_error("Failed to parse reply: %s", bus_error_message(&error));
1708 dbus_message_iter_get_basic(&sub, &service_trigger);
1710 r = check_one_unit(bus, service_trigger, true);
1714 if (print_warning_label) {
1715 log_warning("Warning: Stopping %s, but it can still be activated by:", unit_name);
1716 print_warning_label = false;
1718 log_warning(" %s", service_trigger);
1721 dbus_message_iter_next(&sub);
1725 dbus_message_unref(m);
1728 dbus_message_unref(reply);
1730 dbus_error_free(&error);
1735 static int start_unit_one(
1736 DBusConnection *bus,
1743 DBusMessage *m = NULL, *reply = NULL;
1754 assert(arg_no_block || s);
1756 m = dbus_message_new_method_call(
1757 "org.freedesktop.systemd1",
1758 "/org/freedesktop/systemd1",
1759 "org.freedesktop.systemd1.Manager",
1762 log_error("Could not allocate message.");
1767 n = unit_name_mangle(name);
1768 b = dbus_message_append_args(m,
1769 DBUS_TYPE_STRING, n ? (const char **) &n : &name,
1770 DBUS_TYPE_STRING, &mode,
1774 log_error("Could not append arguments to message.");
1779 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error);
1782 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
1783 /* There's always a fallback possible for
1784 * legacy actions. */
1789 log_error("Failed to issue method call: %s", bus_error_message(error));
1794 if (!dbus_message_get_args(reply, error,
1795 DBUS_TYPE_OBJECT_PATH, &path,
1796 DBUS_TYPE_INVALID)) {
1797 log_error("Failed to parse reply: %s", bus_error_message(error));
1802 if (need_daemon_reload(bus, name))
1803 log_warning("Warning: Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1804 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
1806 if (!arg_no_block) {
1809 if (!(p = strdup(path))) {
1810 log_error("Failed to duplicate path.");
1815 if ((r = set_put(s, p)) < 0) {
1817 log_error("Failed to add path to set.");
1822 /* When stopping a unit warn if it can still be triggered by
1823 * another active unit (socket, path, timer) */
1824 if (!arg_quiet && streq(method, "StopUnit"))
1825 check_triggering_units(bus, name);
1831 dbus_message_unref(m);
1834 dbus_message_unref(reply);
1839 static enum action verb_to_action(const char *verb) {
1840 if (streq(verb, "halt"))
1842 else if (streq(verb, "poweroff"))
1843 return ACTION_POWEROFF;
1844 else if (streq(verb, "reboot"))
1845 return ACTION_REBOOT;
1846 else if (streq(verb, "kexec"))
1847 return ACTION_KEXEC;
1848 else if (streq(verb, "rescue"))
1849 return ACTION_RESCUE;
1850 else if (streq(verb, "emergency"))
1851 return ACTION_EMERGENCY;
1852 else if (streq(verb, "default"))
1853 return ACTION_DEFAULT;
1854 else if (streq(verb, "exit"))
1856 else if (streq(verb, "suspend"))
1857 return ACTION_SUSPEND;
1858 else if (streq(verb, "hibernate"))
1859 return ACTION_HIBERNATE;
1861 return ACTION_INVALID;
1864 static int start_unit(DBusConnection *bus, char **args) {
1866 static const char * const table[_ACTION_MAX] = {
1867 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1868 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1869 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1870 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
1871 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1872 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1873 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1874 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1875 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
1876 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
1877 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1878 [ACTION_EXIT] = SPECIAL_EXIT_TARGET,
1879 [ACTION_SUSPEND] = SPECIAL_SUSPEND_TARGET,
1880 [ACTION_HIBERNATE] = SPECIAL_HIBERNATE_TARGET
1884 const char *method, *mode, *one_name;
1889 dbus_error_init(&error);
1893 ask_password_agent_open_if_enabled();
1895 if (arg_action == ACTION_SYSTEMCTL) {
1897 streq(args[0], "stop") ||
1898 streq(args[0], "condstop") ? "StopUnit" :
1899 streq(args[0], "reload") ? "ReloadUnit" :
1900 streq(args[0], "restart") ? "RestartUnit" :
1902 streq(args[0], "try-restart") ||
1903 streq(args[0], "condrestart") ? "TryRestartUnit" :
1905 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1907 streq(args[0], "reload-or-try-restart") ||
1908 streq(args[0], "condreload") ||
1910 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
1914 (streq(args[0], "isolate") ||
1915 streq(args[0], "rescue") ||
1916 streq(args[0], "emergency")) ? "isolate" : arg_job_mode;
1918 one_name = table[verb_to_action(args[0])];
1921 assert(arg_action < ELEMENTSOF(table));
1922 assert(table[arg_action]);
1924 method = "StartUnit";
1926 mode = (arg_action == ACTION_EMERGENCY ||
1927 arg_action == ACTION_RESCUE ||
1928 arg_action == ACTION_RUNLEVEL2 ||
1929 arg_action == ACTION_RUNLEVEL3 ||
1930 arg_action == ACTION_RUNLEVEL4 ||
1931 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
1933 one_name = table[arg_action];
1936 if (!arg_no_block) {
1937 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1938 log_error("Could not watch jobs: %s", strerror(-ret));
1942 if (!(s = set_new(string_hash_func, string_compare_func))) {
1943 log_error("Failed to allocate set.");
1950 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
1953 STRV_FOREACH(name, args+1)
1954 if ((r = start_unit_one(bus, method, *name, mode, &error, s)) != 0) {
1955 ret = translate_bus_error_to_exit_status(r, &error);
1956 dbus_error_free(&error);
1961 if ((r = wait_for_jobs(bus, s)) < 0) {
1970 dbus_error_free(&error);
1975 /* Ask systemd-logind, which might grant access to unprivileged users
1976 * through PolicyKit */
1977 static int reboot_with_logind(DBusConnection *bus, enum action a) {
1980 DBusMessage *m = NULL, *reply = NULL;
1982 dbus_bool_t interactive = true;
1985 dbus_error_init(&error);
1987 polkit_agent_open_if_enabled();
1995 case ACTION_POWEROFF:
1996 method = "PowerOff";
1999 case ACTION_SUSPEND:
2003 case ACTION_HIBERNATE:
2004 method = "Hibernate";
2011 m = dbus_message_new_method_call(
2012 "org.freedesktop.login1",
2013 "/org/freedesktop/login1",
2014 "org.freedesktop.login1.Manager",
2017 log_error("Could not allocate message.");
2022 if (!dbus_message_append_args(m,
2023 DBUS_TYPE_BOOLEAN, &interactive,
2024 DBUS_TYPE_INVALID)) {
2025 log_error("Could not append arguments to message.");
2030 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2032 if (error_is_no_service(&error)) {
2033 log_debug("Failed to issue method call: %s", bus_error_message(&error));
2038 if (dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2039 log_debug("Failed to issue method call: %s", bus_error_message(&error));
2044 log_info("Failed to issue method call: %s", bus_error_message(&error));
2053 dbus_message_unref(m);
2056 dbus_message_unref(reply);
2058 dbus_error_free(&error);
2066 static int start_special(DBusConnection *bus, char **args) {
2072 a = verb_to_action(args[0]);
2074 if (arg_force >= 2 && geteuid() != 0) {
2075 log_error("Must be root.");
2079 if (arg_force >= 2 &&
2080 (a == ACTION_HALT ||
2081 a == ACTION_POWEROFF ||
2082 a == ACTION_REBOOT))
2085 if (arg_force >= 1 &&
2086 (a == ACTION_HALT ||
2087 a == ACTION_POWEROFF ||
2088 a == ACTION_REBOOT ||
2089 a == ACTION_KEXEC ||
2091 return daemon_reload(bus, args);
2093 /* first try logind, to allow authentication with polkit */
2094 if (geteuid() != 0 &&
2095 (a == ACTION_POWEROFF ||
2096 a == ACTION_REBOOT ||
2097 a == ACTION_SUSPEND ||
2098 a == ACTION_HIBERNATE)) {
2099 r = reboot_with_logind(bus, a);
2104 r = start_unit(bus, args);
2111 static int check_unit(DBusConnection *bus, char **args) {
2113 int r = 3; /* According to LSB: "program is not running" */
2118 STRV_FOREACH(name, args+1) {
2119 int state = check_one_unit(bus, *name, arg_quiet);
2129 static int kill_unit(DBusConnection *bus, char **args) {
2130 DBusMessage *m = NULL;
2138 dbus_error_init(&error);
2141 arg_kill_who = "all";
2144 arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process";
2146 STRV_FOREACH(name, args+1) {
2151 m = dbus_message_new_method_call(
2152 "org.freedesktop.systemd1",
2153 "/org/freedesktop/systemd1",
2154 "org.freedesktop.systemd1.Manager",
2157 log_error("Could not allocate message.");
2162 n = unit_name_mangle(*name);
2163 b = dbus_message_append_args(m,
2164 DBUS_TYPE_STRING, n ? &n : name,
2165 DBUS_TYPE_STRING, &arg_kill_who,
2166 DBUS_TYPE_STRING, &arg_kill_mode,
2167 DBUS_TYPE_INT32, &arg_signal,
2171 log_error("Could not append arguments to message.");
2176 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2178 log_error("Failed to issue method call: %s", bus_error_message(&error));
2179 dbus_error_free(&error);
2183 dbus_message_unref(m);
2186 dbus_message_unref(reply);
2192 dbus_message_unref(m);
2194 dbus_error_free(&error);
2199 typedef struct ExecStatusInfo {
2207 usec_t start_timestamp;
2208 usec_t exit_timestamp;
2213 LIST_FIELDS(struct ExecStatusInfo, exec);
2216 static void exec_status_info_free(ExecStatusInfo *i) {
2225 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
2226 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
2227 DBusMessageIter sub2, sub3;
2231 int32_t code, status;
2237 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
2240 dbus_message_iter_recurse(sub, &sub2);
2242 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
2245 if (!(i->path = strdup(path)))
2248 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
2249 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
2253 dbus_message_iter_recurse(&sub2, &sub3);
2254 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2255 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2256 dbus_message_iter_next(&sub3);
2261 if (!(i->argv = new0(char*, n+1)))
2265 dbus_message_iter_recurse(&sub2, &sub3);
2266 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2269 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2270 dbus_message_iter_get_basic(&sub3, &s);
2271 dbus_message_iter_next(&sub3);
2273 if (!(i->argv[n++] = strdup(s)))
2277 if (!dbus_message_iter_next(&sub2) ||
2278 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
2279 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
2280 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
2281 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
2282 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
2283 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
2284 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
2285 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
2289 i->start_timestamp = (usec_t) start_timestamp;
2290 i->exit_timestamp = (usec_t) exit_timestamp;
2291 i->pid = (pid_t) pid;
2298 typedef struct UnitStatusInfo {
2300 const char *load_state;
2301 const char *active_state;
2302 const char *sub_state;
2303 const char *unit_file_state;
2305 const char *description;
2306 const char *following;
2308 char **documentation;
2310 const char *fragment_path;
2311 const char *source_path;
2312 const char *default_control_group;
2314 const char *load_error;
2317 usec_t inactive_exit_timestamp;
2318 usec_t inactive_exit_timestamp_monotonic;
2319 usec_t active_enter_timestamp;
2320 usec_t active_exit_timestamp;
2321 usec_t inactive_enter_timestamp;
2323 bool need_daemon_reload;
2328 const char *status_text;
2331 usec_t start_timestamp;
2332 usec_t exit_timestamp;
2334 int exit_code, exit_status;
2336 usec_t condition_timestamp;
2337 bool condition_result;
2340 unsigned n_accepted;
2341 unsigned n_connections;
2345 const char *sysfs_path;
2347 /* Mount, Automount */
2353 LIST_HEAD(ExecStatusInfo, exec);
2356 static void print_status_info(UnitStatusInfo *i) {
2358 const char *on, *off, *ss;
2360 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
2361 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2366 /* This shows pretty information about a unit. See
2367 * print_property() for a low-level property printer */
2369 printf("%s", strna(i->id));
2371 if (i->description && !streq_ptr(i->id, i->description))
2372 printf(" - %s", i->description);
2377 printf("\t Follow: unit currently follows state of %s\n", i->following);
2379 if (streq_ptr(i->load_state, "error")) {
2380 on = ansi_highlight_red(true);
2381 off = ansi_highlight_red(false);
2385 path = i->source_path ? i->source_path : i->fragment_path;
2388 printf("\t Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error);
2389 else if (path && i->unit_file_state)
2390 printf("\t Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, path, i->unit_file_state);
2392 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, path);
2394 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
2396 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2398 if (streq_ptr(i->active_state, "failed")) {
2399 on = ansi_highlight_red(true);
2400 off = ansi_highlight_red(false);
2401 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2402 on = ansi_highlight_green(true);
2403 off = ansi_highlight_green(false);
2408 printf("\t Active: %s%s (%s)%s",
2410 strna(i->active_state),
2414 printf("\t Active: %s%s%s",
2416 strna(i->active_state),
2419 if (!isempty(i->result) && !streq(i->result, "success"))
2420 printf(" (Result: %s)", i->result);
2422 timestamp = (streq_ptr(i->active_state, "active") ||
2423 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2424 (streq_ptr(i->active_state, "inactive") ||
2425 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2426 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2427 i->active_exit_timestamp;
2429 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
2430 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2433 printf(" since %s; %s\n", s2, s1);
2435 printf(" since %s\n", s2);
2439 if (!i->condition_result && i->condition_timestamp > 0) {
2440 s1 = format_timestamp_pretty(since1, sizeof(since1), i->condition_timestamp);
2441 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2444 printf("\t start condition failed at %s; %s\n", s2, s1);
2446 printf("\t start condition failed at %s\n", s2);
2450 printf("\t Device: %s\n", i->sysfs_path);
2452 printf("\t Where: %s\n", i->where);
2454 printf("\t What: %s\n", i->what);
2456 if (!strv_isempty(i->documentation)) {
2460 STRV_FOREACH(t, i->documentation) {
2462 printf("\t Docs: %s\n", *t);
2465 printf("\t %s\n", *t);
2470 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2472 LIST_FOREACH(exec, p, i->exec) {
2476 /* Only show exited processes here */
2480 t = strv_join(p->argv, " ");
2481 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
2484 good = is_clean_exit_lsb(p->code, p->status);
2486 on = ansi_highlight_red(true);
2487 off = ansi_highlight_red(false);
2491 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2493 if (p->code == CLD_EXITED) {
2496 printf("status=%i", p->status);
2498 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2503 printf("signal=%s", signal_to_string(p->status));
2505 printf(")%s\n", off);
2507 if (i->main_pid == p->pid &&
2508 i->start_timestamp == p->start_timestamp &&
2509 i->exit_timestamp == p->start_timestamp)
2510 /* Let's not show this twice */
2513 if (p->pid == i->control_pid)
2517 if (i->main_pid > 0 || i->control_pid > 0) {
2520 if (i->main_pid > 0) {
2521 printf("Main PID: %u", (unsigned) i->main_pid);
2525 get_process_comm(i->main_pid, &t);
2530 } else if (i->exit_code > 0) {
2531 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2533 if (i->exit_code == CLD_EXITED) {
2536 printf("status=%i", i->exit_status);
2538 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2543 printf("signal=%s", signal_to_string(i->exit_status));
2548 if (i->main_pid > 0 && i->control_pid > 0)
2551 if (i->control_pid > 0) {
2554 printf(" Control: %u", (unsigned) i->control_pid);
2556 get_process_comm(i->control_pid, &t);
2567 printf("\t Status: \"%s\"\n", i->status_text);
2569 if (i->default_control_group) {
2572 printf("\t CGroup: %s\n", i->default_control_group);
2574 if (arg_transport != TRANSPORT_SSH) {
2584 if (i->main_pid > 0)
2585 extra[k++] = i->main_pid;
2587 if (i->control_pid > 0)
2588 extra[k++] = i->control_pid;
2590 show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, arg_all, extra, k);
2594 if (i->id && arg_transport != TRANSPORT_SSH) {
2596 show_journal_by_unit(i->id, arg_output, 0, i->inactive_exit_timestamp_monotonic, arg_lines, arg_all, arg_follow, !arg_quiet);
2599 if (i->need_daemon_reload)
2600 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2601 ansi_highlight_red(true),
2602 ansi_highlight_red(false),
2603 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
2606 static void show_unit_help(UnitStatusInfo *i) {
2611 if (!i->documentation) {
2612 log_info("Documentation for %s not known.", i->id);
2616 STRV_FOREACH(p, i->documentation) {
2618 if (startswith(*p, "man:")) {
2621 char *page = NULL, *section = NULL;
2622 const char *args[4] = { "man", NULL, NULL, NULL };
2627 if ((*p)[k-1] == ')')
2628 e = strrchr(*p, '(');
2631 page = strndup((*p) + 4, e - *p - 4);
2633 log_error("Out of memory.");
2637 section = strndup(e + 1, *p + k - e - 2);
2640 log_error("Out of memory");
2651 log_error("Failed to fork: %m");
2659 execvp(args[0], (char**) args);
2660 log_error("Failed to execute man: %m");
2661 _exit(EXIT_FAILURE);
2667 wait_for_terminate(pid, NULL);
2669 log_info("Can't show: %s", *p);
2673 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2679 switch (dbus_message_iter_get_arg_type(iter)) {
2681 case DBUS_TYPE_STRING: {
2684 dbus_message_iter_get_basic(iter, &s);
2687 if (streq(name, "Id"))
2689 else if (streq(name, "LoadState"))
2691 else if (streq(name, "ActiveState"))
2692 i->active_state = s;
2693 else if (streq(name, "SubState"))
2695 else if (streq(name, "Description"))
2697 else if (streq(name, "FragmentPath"))
2698 i->fragment_path = s;
2699 else if (streq(name, "SourcePath"))
2701 else if (streq(name, "DefaultControlGroup"))
2702 i->default_control_group = s;
2703 else if (streq(name, "StatusText"))
2705 else if (streq(name, "SysFSPath"))
2707 else if (streq(name, "Where"))
2709 else if (streq(name, "What"))
2711 else if (streq(name, "Following"))
2713 else if (streq(name, "UnitFileState"))
2714 i->unit_file_state = s;
2715 else if (streq(name, "Result"))
2722 case DBUS_TYPE_BOOLEAN: {
2725 dbus_message_iter_get_basic(iter, &b);
2727 if (streq(name, "Accept"))
2729 else if (streq(name, "NeedDaemonReload"))
2730 i->need_daemon_reload = b;
2731 else if (streq(name, "ConditionResult"))
2732 i->condition_result = b;
2737 case DBUS_TYPE_UINT32: {
2740 dbus_message_iter_get_basic(iter, &u);
2742 if (streq(name, "MainPID")) {
2744 i->main_pid = (pid_t) u;
2747 } else if (streq(name, "ControlPID"))
2748 i->control_pid = (pid_t) u;
2749 else if (streq(name, "ExecMainPID")) {
2751 i->main_pid = (pid_t) u;
2752 } else if (streq(name, "NAccepted"))
2754 else if (streq(name, "NConnections"))
2755 i->n_connections = u;
2760 case DBUS_TYPE_INT32: {
2763 dbus_message_iter_get_basic(iter, &j);
2765 if (streq(name, "ExecMainCode"))
2766 i->exit_code = (int) j;
2767 else if (streq(name, "ExecMainStatus"))
2768 i->exit_status = (int) j;
2773 case DBUS_TYPE_UINT64: {
2776 dbus_message_iter_get_basic(iter, &u);
2778 if (streq(name, "ExecMainStartTimestamp"))
2779 i->start_timestamp = (usec_t) u;
2780 else if (streq(name, "ExecMainExitTimestamp"))
2781 i->exit_timestamp = (usec_t) u;
2782 else if (streq(name, "ActiveEnterTimestamp"))
2783 i->active_enter_timestamp = (usec_t) u;
2784 else if (streq(name, "InactiveEnterTimestamp"))
2785 i->inactive_enter_timestamp = (usec_t) u;
2786 else if (streq(name, "InactiveExitTimestamp"))
2787 i->inactive_exit_timestamp = (usec_t) u;
2788 else if (streq(name, "InactiveExitTimestampMonotonic"))
2789 i->inactive_exit_timestamp_monotonic = (usec_t) u;
2790 else if (streq(name, "ActiveExitTimestamp"))
2791 i->active_exit_timestamp = (usec_t) u;
2792 else if (streq(name, "ConditionTimestamp"))
2793 i->condition_timestamp = (usec_t) u;
2798 case DBUS_TYPE_ARRAY: {
2800 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2801 startswith(name, "Exec")) {
2802 DBusMessageIter sub;
2804 dbus_message_iter_recurse(iter, &sub);
2805 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2806 ExecStatusInfo *info;
2809 if (!(info = new0(ExecStatusInfo, 1)))
2812 if (!(info->name = strdup(name))) {
2817 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2822 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2824 dbus_message_iter_next(&sub);
2826 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING &&
2827 streq(name, "Documentation")) {
2829 DBusMessageIter sub;
2831 dbus_message_iter_recurse(iter, &sub);
2832 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING) {
2836 dbus_message_iter_get_basic(&sub, &s);
2838 l = strv_append(i->documentation, s);
2842 strv_free(i->documentation);
2843 i->documentation = l;
2845 dbus_message_iter_next(&sub);
2852 case DBUS_TYPE_STRUCT: {
2854 if (streq(name, "LoadError")) {
2855 DBusMessageIter sub;
2856 const char *n, *message;
2859 dbus_message_iter_recurse(iter, &sub);
2861 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
2865 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
2869 if (!isempty(message))
2870 i->load_error = message;
2880 static int print_property(const char *name, DBusMessageIter *iter) {
2884 /* This is a low-level property printer, see
2885 * print_status_info() for the nicer output */
2887 if (arg_property && !strv_find(arg_property, name))
2890 switch (dbus_message_iter_get_arg_type(iter)) {
2892 case DBUS_TYPE_STRUCT: {
2893 DBusMessageIter sub;
2894 dbus_message_iter_recurse(iter, &sub);
2896 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2899 dbus_message_iter_get_basic(&sub, &u);
2902 printf("%s=%u\n", name, (unsigned) u);
2904 printf("%s=\n", name);
2907 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2910 dbus_message_iter_get_basic(&sub, &s);
2912 if (arg_all || s[0])
2913 printf("%s=%s\n", name, s);
2916 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
2917 const char *a = NULL, *b = NULL;
2919 if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
2920 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
2922 if (arg_all || !isempty(a) || !isempty(b))
2923 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
2931 case DBUS_TYPE_ARRAY:
2933 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2934 DBusMessageIter sub, sub2;
2936 dbus_message_iter_recurse(iter, &sub);
2937 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2941 dbus_message_iter_recurse(&sub, &sub2);
2943 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2944 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2945 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
2947 dbus_message_iter_next(&sub);
2952 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2953 DBusMessageIter sub, sub2;
2955 dbus_message_iter_recurse(iter, &sub);
2956 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2957 const char *type, *path;
2959 dbus_message_iter_recurse(&sub, &sub2);
2961 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2962 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2963 printf("%s=%s\n", type, path);
2965 dbus_message_iter_next(&sub);
2970 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2971 DBusMessageIter sub, sub2;
2973 dbus_message_iter_recurse(iter, &sub);
2974 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2976 uint64_t value, next_elapse;
2978 dbus_message_iter_recurse(&sub, &sub2);
2980 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2981 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2982 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2983 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2985 printf("%s={ value=%s ; next_elapse=%s }\n",
2987 format_timespan(timespan1, sizeof(timespan1), value),
2988 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2991 dbus_message_iter_next(&sub);
2996 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
2997 DBusMessageIter sub, sub2;
2999 dbus_message_iter_recurse(iter, &sub);
3000 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3001 const char *controller, *attr, *value;
3003 dbus_message_iter_recurse(&sub, &sub2);
3005 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
3006 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
3007 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
3009 printf("ControlGroupAttribute={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
3015 dbus_message_iter_next(&sub);
3020 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
3021 DBusMessageIter sub;
3023 dbus_message_iter_recurse(iter, &sub);
3024 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3025 ExecStatusInfo info;
3028 if (exec_status_info_deserialize(&sub, &info) >= 0) {
3029 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
3032 t = strv_join(info.argv, " ");
3034 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
3038 yes_no(info.ignore),
3039 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
3040 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
3041 (unsigned) info. pid,
3042 sigchld_code_to_string(info.code),
3044 info.code == CLD_EXITED ? "" : "/",
3045 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
3051 strv_free(info.argv);
3053 dbus_message_iter_next(&sub);
3062 if (generic_print_property(name, iter, arg_all) > 0)
3066 printf("%s=[unprintable]\n", name);
3071 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
3072 DBusMessage *m = NULL, *reply = NULL;
3073 const char *interface = "";
3076 DBusMessageIter iter, sub, sub2, sub3;
3077 UnitStatusInfo info;
3085 dbus_error_init(&error);
3087 if (!(m = dbus_message_new_method_call(
3088 "org.freedesktop.systemd1",
3090 "org.freedesktop.DBus.Properties",
3092 log_error("Could not allocate message.");
3097 if (!dbus_message_append_args(m,
3098 DBUS_TYPE_STRING, &interface,
3099 DBUS_TYPE_INVALID)) {
3100 log_error("Could not append arguments to message.");
3105 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3106 log_error("Failed to issue method call: %s", bus_error_message(&error));
3111 if (!dbus_message_iter_init(reply, &iter) ||
3112 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3113 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
3114 log_error("Failed to parse reply.");
3119 dbus_message_iter_recurse(&iter, &sub);
3126 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3129 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
3130 log_error("Failed to parse reply.");
3135 dbus_message_iter_recurse(&sub, &sub2);
3137 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
3138 log_error("Failed to parse reply.");
3143 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
3144 log_error("Failed to parse reply.");
3149 dbus_message_iter_recurse(&sub2, &sub3);
3151 if (show_properties)
3152 r = print_property(name, &sub3);
3154 r = status_property(name, &sub3, &info);
3157 log_error("Failed to parse reply.");
3162 dbus_message_iter_next(&sub);
3167 if (!show_properties) {
3168 if (streq(verb, "help"))
3169 show_unit_help(&info);
3171 print_status_info(&info);
3174 strv_free(info.documentation);
3176 if (!streq_ptr(info.active_state, "active") &&
3177 !streq_ptr(info.active_state, "reloading") &&
3178 streq(verb, "status"))
3179 /* According to LSB: "program not running" */
3182 while ((p = info.exec)) {
3183 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
3184 exec_status_info_free(p);
3189 dbus_message_unref(m);
3192 dbus_message_unref(reply);
3194 dbus_error_free(&error);
3199 static int show_one_by_pid(const char *verb, DBusConnection *bus, uint32_t pid, bool *new_line) {
3200 DBusMessage *m = NULL, *reply = NULL;
3201 const char *path = NULL;
3205 dbus_error_init(&error);
3207 m = dbus_message_new_method_call(
3208 "org.freedesktop.systemd1",
3209 "/org/freedesktop/systemd1",
3210 "org.freedesktop.systemd1.Manager",
3213 log_error("Could not allocate message.");
3218 if (!dbus_message_append_args(m,
3219 DBUS_TYPE_UINT32, &pid,
3220 DBUS_TYPE_INVALID)) {
3221 log_error("Could not append arguments to message.");
3226 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3228 log_error("Failed to issue method call: %s", bus_error_message(&error));
3233 if (!dbus_message_get_args(reply, &error,
3234 DBUS_TYPE_OBJECT_PATH, &path,
3235 DBUS_TYPE_INVALID)) {
3236 log_error("Failed to parse reply: %s", bus_error_message(&error));
3241 r = show_one(verb, bus, path, false, new_line);
3245 dbus_message_unref(m);
3248 dbus_message_unref(reply);
3250 dbus_error_free(&error);
3255 static int show(DBusConnection *bus, char **args) {
3257 bool show_properties, new_line = false;
3263 show_properties = streq(args[0], "show");
3265 if (show_properties)
3266 pager_open_if_enabled();
3268 if (show_properties && strv_length(args) <= 1) {
3269 /* If not argument is specified inspect the manager
3272 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
3275 STRV_FOREACH(name, args+1) {
3278 if (safe_atou32(*name, &id) < 0) {
3280 /* Interpret as unit name */
3282 n = unit_name_mangle(*name);
3283 p = unit_dbus_path_from_name(n ? n : *name);
3286 log_error("Out of memory");
3290 r = show_one(args[0], bus, p, show_properties, &new_line);
3296 } else if (show_properties) {
3298 /* Interpret as job id */
3301 if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0) {
3302 log_error("Out of memory");
3306 r = show_one(args[0], bus, p, show_properties, &new_line);
3314 /* Interpret as PID */
3316 r = show_one_by_pid(args[0], bus, id, &new_line);
3325 static int dump(DBusConnection *bus, char **args) {
3326 DBusMessage *m = NULL, *reply = NULL;
3331 dbus_error_init(&error);
3333 pager_open_if_enabled();
3335 if (!(m = dbus_message_new_method_call(
3336 "org.freedesktop.systemd1",
3337 "/org/freedesktop/systemd1",
3338 "org.freedesktop.systemd1.Manager",
3340 log_error("Could not allocate message.");
3344 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3345 log_error("Failed to issue method call: %s", bus_error_message(&error));
3350 if (!dbus_message_get_args(reply, &error,
3351 DBUS_TYPE_STRING, &text,
3352 DBUS_TYPE_INVALID)) {
3353 log_error("Failed to parse reply: %s", bus_error_message(&error));
3358 fputs(text, stdout);
3364 dbus_message_unref(m);
3367 dbus_message_unref(reply);
3369 dbus_error_free(&error);
3374 static int snapshot(DBusConnection *bus, char **args) {
3375 DBusMessage *m = NULL, *reply = NULL;
3378 const char *name = "", *path, *id;
3379 dbus_bool_t cleanup = FALSE;
3380 DBusMessageIter iter, sub;
3382 *interface = "org.freedesktop.systemd1.Unit",
3387 dbus_error_init(&error);
3389 m = dbus_message_new_method_call(
3390 "org.freedesktop.systemd1",
3391 "/org/freedesktop/systemd1",
3392 "org.freedesktop.systemd1.Manager",
3395 log_error("Could not allocate message.");
3399 if (strv_length(args) > 1)
3402 n = unit_name_mangle(name);
3403 b = dbus_message_append_args(m,
3404 DBUS_TYPE_STRING, n ? (const char**) &n : &name,
3405 DBUS_TYPE_BOOLEAN, &cleanup,
3409 log_error("Could not append arguments to message.");
3414 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3416 log_error("Failed to issue method call: %s", bus_error_message(&error));
3421 if (!dbus_message_get_args(reply, &error,
3422 DBUS_TYPE_OBJECT_PATH, &path,
3423 DBUS_TYPE_INVALID)) {
3424 log_error("Failed to parse reply: %s", bus_error_message(&error));
3429 dbus_message_unref(m);
3430 m = dbus_message_new_method_call(
3431 "org.freedesktop.systemd1",
3433 "org.freedesktop.DBus.Properties",
3436 log_error("Could not allocate message.");
3440 if (!dbus_message_append_args(m,
3441 DBUS_TYPE_STRING, &interface,
3442 DBUS_TYPE_STRING, &property,
3443 DBUS_TYPE_INVALID)) {
3444 log_error("Could not append arguments to message.");
3449 dbus_message_unref(reply);
3450 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3452 log_error("Failed to issue method call: %s", bus_error_message(&error));
3457 if (!dbus_message_iter_init(reply, &iter) ||
3458 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3459 log_error("Failed to parse reply.");
3464 dbus_message_iter_recurse(&iter, &sub);
3466 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3467 log_error("Failed to parse reply.");
3472 dbus_message_iter_get_basic(&sub, &id);
3480 dbus_message_unref(m);
3483 dbus_message_unref(reply);
3485 dbus_error_free(&error);
3490 static int delete_snapshot(DBusConnection *bus, char **args) {
3491 DBusMessage *m = NULL, *reply = NULL;
3499 dbus_error_init(&error);
3501 STRV_FOREACH(name, args+1) {
3502 const char *path = NULL;
3506 m = dbus_message_new_method_call(
3507 "org.freedesktop.systemd1",
3508 "/org/freedesktop/systemd1",
3509 "org.freedesktop.systemd1.Manager",
3512 log_error("Could not allocate message.");
3517 n = unit_name_mangle(*name);
3518 b = dbus_message_append_args(m,
3519 DBUS_TYPE_STRING, n ? &n : name,
3523 log_error("Could not append arguments to message.");
3528 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3530 log_error("Failed to issue method call: %s", bus_error_message(&error));
3535 if (!dbus_message_get_args(reply, &error,
3536 DBUS_TYPE_OBJECT_PATH, &path,
3537 DBUS_TYPE_INVALID)) {
3538 log_error("Failed to parse reply: %s", bus_error_message(&error));
3543 dbus_message_unref(m);
3544 m = dbus_message_new_method_call(
3545 "org.freedesktop.systemd1",
3547 "org.freedesktop.systemd1.Snapshot",
3550 log_error("Could not allocate message.");
3555 dbus_message_unref(reply);
3556 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3558 log_error("Failed to issue method call: %s", bus_error_message(&error));
3563 dbus_message_unref(m);
3564 dbus_message_unref(reply);
3572 dbus_message_unref(m);
3575 dbus_message_unref(reply);
3577 dbus_error_free(&error);
3582 static int daemon_reload(DBusConnection *bus, char **args) {
3583 DBusMessage *m = NULL, *reply = NULL;
3588 dbus_error_init(&error);
3590 if (arg_action == ACTION_RELOAD)
3592 else if (arg_action == ACTION_REEXEC)
3593 method = "Reexecute";
3595 assert(arg_action == ACTION_SYSTEMCTL);
3598 streq(args[0], "clear-jobs") ||
3599 streq(args[0], "cancel") ? "ClearJobs" :
3600 streq(args[0], "daemon-reexec") ? "Reexecute" :
3601 streq(args[0], "reset-failed") ? "ResetFailed" :
3602 streq(args[0], "halt") ? "Halt" :
3603 streq(args[0], "poweroff") ? "PowerOff" :
3604 streq(args[0], "reboot") ? "Reboot" :
3605 streq(args[0], "kexec") ? "KExec" :
3606 streq(args[0], "exit") ? "Exit" :
3607 /* "daemon-reload" */ "Reload";
3610 if (!(m = dbus_message_new_method_call(
3611 "org.freedesktop.systemd1",
3612 "/org/freedesktop/systemd1",
3613 "org.freedesktop.systemd1.Manager",
3615 log_error("Could not allocate message.");
3619 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3621 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3622 /* There's always a fallback possible for
3623 * legacy actions. */
3628 if (streq(method, "Reexecute") && dbus_error_has_name(&error, DBUS_ERROR_NO_REPLY)) {
3629 /* On reexecution, we expect a disconnect, not
3635 log_error("Failed to issue method call: %s", bus_error_message(&error));
3644 dbus_message_unref(m);
3647 dbus_message_unref(reply);
3649 dbus_error_free(&error);
3654 static int reset_failed(DBusConnection *bus, char **args) {
3655 DBusMessage *m = NULL;
3661 dbus_error_init(&error);
3663 if (strv_length(args) <= 1)
3664 return daemon_reload(bus, args);
3666 STRV_FOREACH(name, args+1) {
3671 m = dbus_message_new_method_call(
3672 "org.freedesktop.systemd1",
3673 "/org/freedesktop/systemd1",
3674 "org.freedesktop.systemd1.Manager",
3677 log_error("Could not allocate message.");
3682 n = unit_name_mangle(*name);
3683 b = dbus_message_append_args(m,
3684 DBUS_TYPE_STRING, n ? &n : name,
3688 log_error("Could not append arguments to message.");
3693 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3695 log_error("Failed to issue method call: %s", bus_error_message(&error));
3700 dbus_message_unref(m);
3701 dbus_message_unref(reply);
3709 dbus_message_unref(m);
3711 dbus_error_free(&error);
3716 static int show_enviroment(DBusConnection *bus, char **args) {
3717 DBusMessage *m = NULL, *reply = NULL;
3719 DBusMessageIter iter, sub, sub2;
3722 *interface = "org.freedesktop.systemd1.Manager",
3723 *property = "Environment";
3725 dbus_error_init(&error);
3727 pager_open_if_enabled();
3729 if (!(m = dbus_message_new_method_call(
3730 "org.freedesktop.systemd1",
3731 "/org/freedesktop/systemd1",
3732 "org.freedesktop.DBus.Properties",
3734 log_error("Could not allocate message.");
3738 if (!dbus_message_append_args(m,
3739 DBUS_TYPE_STRING, &interface,
3740 DBUS_TYPE_STRING, &property,
3741 DBUS_TYPE_INVALID)) {
3742 log_error("Could not append arguments to message.");
3747 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3748 log_error("Failed to issue method call: %s", bus_error_message(&error));
3753 if (!dbus_message_iter_init(reply, &iter) ||
3754 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3755 log_error("Failed to parse reply.");
3760 dbus_message_iter_recurse(&iter, &sub);
3762 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3763 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3764 log_error("Failed to parse reply.");
3769 dbus_message_iter_recurse(&sub, &sub2);
3771 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3774 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3775 log_error("Failed to parse reply.");
3780 dbus_message_iter_get_basic(&sub2, &text);
3781 printf("%s\n", text);
3783 dbus_message_iter_next(&sub2);
3790 dbus_message_unref(m);
3793 dbus_message_unref(reply);
3795 dbus_error_free(&error);
3800 static int switch_root(DBusConnection *bus, char **args) {
3801 DBusMessage *m = NULL, *reply = NULL;
3803 const char *root, *init;
3807 dbus_error_init(&error);
3809 l = strv_length(args);
3810 if (l < 2 || l > 3) {
3811 log_error("Wrong number of arguments.");
3816 init = l >= 3 ? args[2] : "";
3818 m = dbus_message_new_method_call(
3819 "org.freedesktop.systemd1",
3820 "/org/freedesktop/systemd1",
3821 "org.freedesktop.systemd1.Manager",
3824 log_error("Could not allocate message.");
3828 if (!dbus_message_append_args(
3830 DBUS_TYPE_STRING, &root,
3831 DBUS_TYPE_STRING, &init,
3832 DBUS_TYPE_INVALID)) {
3833 log_error("Could not append arguments to message.");
3838 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3840 log_error("Failed to issue method call: %s", bus_error_message(&error));
3849 dbus_message_unref(m);
3852 dbus_message_unref(reply);
3854 dbus_error_free(&error);
3859 static int set_environment(DBusConnection *bus, char **args) {
3860 DBusMessage *m = NULL, *reply = NULL;
3864 DBusMessageIter iter, sub;
3867 dbus_error_init(&error);
3869 method = streq(args[0], "set-environment")
3871 : "UnsetEnvironment";
3873 if (!(m = dbus_message_new_method_call(
3874 "org.freedesktop.systemd1",
3875 "/org/freedesktop/systemd1",
3876 "org.freedesktop.systemd1.Manager",
3879 log_error("Could not allocate message.");
3883 dbus_message_iter_init_append(m, &iter);
3885 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3886 log_error("Could not append arguments to message.");
3891 STRV_FOREACH(name, args+1)
3892 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, name)) {
3893 log_error("Could not append arguments to message.");
3898 if (!dbus_message_iter_close_container(&iter, &sub)) {
3899 log_error("Could not append arguments to message.");
3904 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3905 log_error("Failed to issue method call: %s", bus_error_message(&error));
3914 dbus_message_unref(m);
3917 dbus_message_unref(reply);
3919 dbus_error_free(&error);
3924 static int enable_sysv_units(char **args) {
3927 #if defined (HAVE_SYSV_COMPAT) && (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_SUSE) || defined(TARGET_ALTLINUX) || defined(TARGET_MAGEIA))
3928 const char *verb = args[0];
3929 unsigned f = 1, t = 1;
3932 if (arg_scope != UNIT_FILE_SYSTEM)
3935 if (!streq(verb, "enable") &&
3936 !streq(verb, "disable") &&
3937 !streq(verb, "is-enabled"))
3940 /* Processes all SysV units, and reshuffles the array so that
3941 * afterwards only the native units remain */
3944 r = lookup_paths_init(&paths, MANAGER_SYSTEM, false, NULL, NULL, NULL);
3949 for (f = 1; args[f]; f++) {
3952 bool found_native = false, found_sysv;
3954 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
3955 char **k, *l, *q = NULL;
3962 if (!endswith(name, ".service"))
3965 if (path_is_absolute(name))
3968 STRV_FOREACH(k, paths.unit_path) {
3971 if (!isempty(arg_root))
3972 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
3974 asprintf(&p, "%s/%s", *k, name);
3977 log_error("No memory");
3982 found_native = access(p, F_OK) >= 0;
3993 if (!isempty(arg_root))
3994 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
3996 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
3998 log_error("No memory");
4003 p[strlen(p) - sizeof(".service") + 1] = 0;
4004 found_sysv = access(p, F_OK) >= 0;
4011 /* Mark this entry, so that we don't try enabling it as native unit */
4012 args[f] = (char*) "";
4014 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
4016 if (!isempty(arg_root))
4017 argv[c++] = q = strappend("--root=", arg_root);
4019 argv[c++] = path_get_file_name(p);
4021 streq(verb, "enable") ? "on" :
4022 streq(verb, "disable") ? "off" : "--level=5";
4025 l = strv_join((char**)argv, " ");
4027 log_error("No memory.");
4034 log_info("Executing %s", l);
4039 log_error("Failed to fork: %m");
4044 } else if (pid == 0) {
4047 execv(argv[0], (char**) argv);
4048 _exit(EXIT_FAILURE);
4054 j = wait_for_terminate(pid, &status);
4056 log_error("Failed to wait for child: %s", strerror(-r));
4061 if (status.si_code == CLD_EXITED) {
4062 if (streq(verb, "is-enabled")) {
4063 if (status.si_status == 0) {
4072 } else if (status.si_status != 0) {
4083 lookup_paths_free(&paths);
4085 /* Drop all SysV units */
4086 for (f = 1, t = 1; args[f]; f++) {
4088 if (isempty(args[f]))
4091 args[t++] = args[f];
4100 static int enable_unit(DBusConnection *bus, char **args) {
4101 const char *verb = args[0];
4102 UnitFileChange *changes = NULL;
4103 unsigned n_changes = 0, i;
4104 int carries_install_info = -1;
4105 DBusMessage *m = NULL, *reply = NULL;
4109 r = enable_sysv_units(args);
4116 dbus_error_init(&error);
4118 if (!bus || avoid_bus()) {
4119 if (streq(verb, "enable")) {
4120 r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4121 carries_install_info = r;
4122 } else if (streq(verb, "disable"))
4123 r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
4124 else if (streq(verb, "reenable")) {
4125 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4126 carries_install_info = r;
4127 } else if (streq(verb, "link"))
4128 r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4129 else if (streq(verb, "preset")) {
4130 r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4131 carries_install_info = r;
4132 } else if (streq(verb, "mask"))
4133 r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4134 else if (streq(verb, "unmask"))
4135 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
4137 assert_not_reached("Unknown verb");
4140 log_error("Operation failed: %s", strerror(-r));
4145 for (i = 0; i < n_changes; i++) {
4146 if (changes[i].type == UNIT_FILE_SYMLINK)
4147 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
4149 log_info("rm '%s'", changes[i].path);
4155 bool send_force = true, expect_carries_install_info = false;
4157 DBusMessageIter iter, sub, sub2;
4159 if (streq(verb, "enable")) {
4160 method = "EnableUnitFiles";
4161 expect_carries_install_info = true;
4162 } else if (streq(verb, "disable")) {
4163 method = "DisableUnitFiles";
4165 } else if (streq(verb, "reenable")) {
4166 method = "ReenableUnitFiles";
4167 expect_carries_install_info = true;
4168 } else if (streq(verb, "link"))
4169 method = "LinkUnitFiles";
4170 else if (streq(verb, "preset")) {
4171 method = "PresetUnitFiles";
4172 expect_carries_install_info = true;
4173 } else if (streq(verb, "mask"))
4174 method = "MaskUnitFiles";
4175 else if (streq(verb, "unmask")) {
4176 method = "UnmaskUnitFiles";
4179 assert_not_reached("Unknown verb");
4181 m = dbus_message_new_method_call(
4182 "org.freedesktop.systemd1",
4183 "/org/freedesktop/systemd1",
4184 "org.freedesktop.systemd1.Manager",
4187 log_error("Out of memory");
4192 dbus_message_iter_init_append(m, &iter);
4194 r = bus_append_strv_iter(&iter, args+1);
4196 log_error("Failed to append unit files.");
4201 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
4202 log_error("Failed to append runtime boolean.");
4210 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
4211 log_error("Failed to append force boolean.");
4217 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4219 log_error("Failed to issue method call: %s", bus_error_message(&error));
4224 if (!dbus_message_iter_init(reply, &iter)) {
4225 log_error("Failed to initialize iterator.");
4229 if (expect_carries_install_info) {
4230 r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
4232 log_error("Failed to parse reply.");
4236 carries_install_info = b;
4239 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
4240 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
4241 log_error("Failed to parse reply.");
4246 dbus_message_iter_recurse(&iter, &sub);
4247 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4248 const char *type, *path, *source;
4250 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
4251 log_error("Failed to parse reply.");
4256 dbus_message_iter_recurse(&sub, &sub2);
4258 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
4259 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
4260 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
4261 log_error("Failed to parse reply.");
4267 if (streq(type, "symlink"))
4268 log_info("ln -s '%s' '%s'", source, path);
4270 log_info("rm '%s'", path);
4273 dbus_message_iter_next(&sub);
4276 /* Try to reload if enabeld */
4278 r = daemon_reload(bus, args);
4281 if (carries_install_info == 0)
4282 log_warning("The unit files have no [Install] section. They are not meant to be enabled using systemctl.");
4286 dbus_message_unref(m);
4289 dbus_message_unref(reply);
4291 unit_file_changes_free(changes, n_changes);
4293 dbus_error_free(&error);
4297 static int unit_is_enabled(DBusConnection *bus, char **args) {
4300 DBusMessage *m = NULL, *reply = NULL;
4304 dbus_error_init(&error);
4306 r = enable_sysv_units(args);
4312 if (!bus || avoid_bus()) {
4314 STRV_FOREACH(name, args+1) {
4315 UnitFileState state;
4317 state = unit_file_get_state(arg_scope, arg_root, *name);
4323 if (state == UNIT_FILE_ENABLED ||
4324 state == UNIT_FILE_ENABLED_RUNTIME ||
4325 state == UNIT_FILE_STATIC)
4329 puts(unit_file_state_to_string(state));
4333 STRV_FOREACH(name, args+1) {
4336 m = dbus_message_new_method_call(
4337 "org.freedesktop.systemd1",
4338 "/org/freedesktop/systemd1",
4339 "org.freedesktop.systemd1.Manager",
4340 "GetUnitFileState");
4342 log_error("Out of memory");
4347 if (!dbus_message_append_args(m,
4348 DBUS_TYPE_STRING, name,
4349 DBUS_TYPE_INVALID)) {
4350 log_error("Could not append arguments to message.");
4355 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4357 log_error("Failed to issue method call: %s", bus_error_message(&error));
4362 if (!dbus_message_get_args(reply, &error,
4363 DBUS_TYPE_STRING, &s,
4364 DBUS_TYPE_INVALID)) {
4365 log_error("Failed to parse reply: %s", bus_error_message(&error));
4370 dbus_message_unref(m);
4371 dbus_message_unref(reply);
4374 if (streq(s, "enabled") ||
4375 streq(s, "enabled-runtime") ||
4384 r = enabled ? 0 : 1;
4388 dbus_message_unref(m);
4391 dbus_message_unref(reply);
4393 dbus_error_free(&error);
4397 static int systemctl_help(void) {
4399 pager_open_if_enabled();
4401 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4402 "Query or send control commands to the systemd manager.\n\n"
4403 " -h --help Show this help\n"
4404 " --version Show package version\n"
4405 " -t --type=TYPE List only units of a particular type\n"
4406 " -p --property=NAME Show only properties by this name\n"
4407 " -a --all Show all units/properties, including dead/empty ones\n"
4408 " --failed Show only failed units\n"
4409 " --full Don't ellipsize unit names on output\n"
4410 " --fail When queueing a new job, fail if conflicting jobs are\n"
4412 " --ignore-dependencies\n"
4413 " When queueing a new job, ignore all its dependencies\n"
4414 " --kill-who=WHO Who to send signal to\n"
4415 " -s --signal=SIGNAL Which signal to send\n"
4416 " -H --host=[USER@]HOST\n"
4417 " Show information for remote host\n"
4418 " -P --privileged Acquire privileges before execution\n"
4419 " -q --quiet Suppress output\n"
4420 " --no-block Do not wait until operation finished\n"
4421 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4422 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4424 " --no-legend Do not print a legend (column headers and hints)\n"
4425 " --no-pager Do not pipe output into a pager\n"
4426 " --no-ask-password\n"
4427 " Do not ask for system passwords\n"
4428 " --order When generating graph for dot, show only order\n"
4429 " --require When generating graph for dot, show only requirement\n"
4430 " --system Connect to system manager\n"
4431 " --user Connect to user service manager\n"
4432 " --global Enable/disable unit files globally\n"
4433 " -f --force When enabling unit files, override existing symlinks\n"
4434 " When shutting down, execute action immediately\n"
4435 " --root=PATH Enable unit files in the specified root directory\n"
4436 " --runtime Enable unit files only temporarily until next reboot\n"
4437 " -n --lines=INTEGER Journal entries to show\n"
4438 " --follow Follow journal\n"
4439 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4440 " verbose, export, json, cat)\n\n"
4442 " list-units List loaded units\n"
4443 " start [NAME...] Start (activate) one or more units\n"
4444 " stop [NAME...] Stop (deactivate) one or more units\n"
4445 " reload [NAME...] Reload one or more units\n"
4446 " restart [NAME...] Start or restart one or more units\n"
4447 " try-restart [NAME...] Restart one or more units if active\n"
4448 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
4449 " otherwise start or restart\n"
4450 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
4451 " otherwise restart if active\n"
4452 " isolate [NAME] Start one unit and stop all others\n"
4453 " kill [NAME...] Send signal to processes of a unit\n"
4454 " is-active [NAME...] Check whether units are active\n"
4455 " status [NAME...|PID...] Show runtime status of one or more units\n"
4456 " show [NAME...|JOB...] Show properties of one or more\n"
4457 " units/jobs or the manager\n"
4458 " help [NAME...|PID...] Show manual for one or more units\n"
4459 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4461 " load [NAME...] Load one or more units\n\n"
4462 "Unit File Commands:\n"
4463 " list-unit-files List installed unit files\n"
4464 " enable [NAME...] Enable one or more unit files\n"
4465 " disable [NAME...] Disable one or more unit files\n"
4466 " reenable [NAME...] Reenable one or more unit files\n"
4467 " preset [NAME...] Enable/disable one or more unit files\n"
4468 " based on preset configuration\n"
4469 " mask [NAME...] Mask one or more units\n"
4470 " unmask [NAME...] Unmask one or more units\n"
4471 " link [PATH...] Link one or more units files into\n"
4472 " the search path\n"
4473 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4475 " list-jobs List jobs\n"
4476 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4477 "Status Commands:\n"
4478 " dump Dump server status\n"
4479 " dot Dump dependency graph for dot(1)\n\n"
4480 "Snapshot Commands:\n"
4481 " snapshot [NAME] Create a snapshot\n"
4482 " delete [NAME...] Remove one or more snapshots\n\n"
4483 "Environment Commands:\n"
4484 " show-environment Dump environment\n"
4485 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4486 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4487 "Manager Lifecycle Commands:\n"
4488 " daemon-reload Reload systemd manager configuration\n"
4489 " daemon-reexec Reexecute systemd manager\n\n"
4490 "System Commands:\n"
4491 " default Enter system default mode\n"
4492 " rescue Enter system rescue mode\n"
4493 " emergency Enter system emergency mode\n"
4494 " halt Shut down and halt the system\n"
4495 " poweroff Shut down and power-off the system\n"
4496 " reboot Shut down and reboot the system\n"
4497 " kexec Shut down and reboot the system with kexec\n"
4498 " exit Request user instance exit\n"
4499 " switch-root [ROOT] [INIT] Change to a different root file system\n"
4500 " suspend Suspend the system\n"
4501 " hibernate Hibernate the system\n",
4502 program_invocation_short_name);
4507 static int halt_help(void) {
4509 printf("%s [OPTIONS...]\n\n"
4510 "%s the system.\n\n"
4511 " --help Show this help\n"
4512 " --halt Halt the machine\n"
4513 " -p --poweroff Switch off the machine\n"
4514 " --reboot Reboot the machine\n"
4515 " -f --force Force immediate halt/power-off/reboot\n"
4516 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4517 " -d --no-wtmp Don't write wtmp record\n"
4518 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4519 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4520 program_invocation_short_name,
4521 arg_action == ACTION_REBOOT ? "Reboot" :
4522 arg_action == ACTION_POWEROFF ? "Power off" :
4528 static int shutdown_help(void) {
4530 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4531 "Shut down the system.\n\n"
4532 " --help Show this help\n"
4533 " -H --halt Halt the machine\n"
4534 " -P --poweroff Power-off the machine\n"
4535 " -r --reboot Reboot the machine\n"
4536 " -h Equivalent to --poweroff, overridden by --halt\n"
4537 " -k Don't halt/power-off/reboot, just send warnings\n"
4538 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4539 " -c Cancel a pending shutdown\n",
4540 program_invocation_short_name);
4545 static int telinit_help(void) {
4547 printf("%s [OPTIONS...] {COMMAND}\n\n"
4548 "Send control commands to the init daemon.\n\n"
4549 " --help Show this help\n"
4550 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4552 " 0 Power-off the machine\n"
4553 " 6 Reboot the machine\n"
4554 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4555 " 1, s, S Enter rescue mode\n"
4556 " q, Q Reload init daemon configuration\n"
4557 " u, U Reexecute init daemon\n",
4558 program_invocation_short_name);
4563 static int runlevel_help(void) {
4565 printf("%s [OPTIONS...]\n\n"
4566 "Prints the previous and current runlevel of the init system.\n\n"
4567 " --help Show this help\n",
4568 program_invocation_short_name);
4573 static int systemctl_parse_argv(int argc, char *argv[]) {
4577 ARG_IGNORE_DEPENDENCIES,
4593 ARG_NO_ASK_PASSWORD,
4600 static const struct option options[] = {
4601 { "help", no_argument, NULL, 'h' },
4602 { "version", no_argument, NULL, ARG_VERSION },
4603 { "type", required_argument, NULL, 't' },
4604 { "property", required_argument, NULL, 'p' },
4605 { "all", no_argument, NULL, 'a' },
4606 { "failed", no_argument, NULL, ARG_FAILED },
4607 { "full", no_argument, NULL, ARG_FULL },
4608 { "fail", no_argument, NULL, ARG_FAIL },
4609 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4610 { "user", no_argument, NULL, ARG_USER },
4611 { "system", no_argument, NULL, ARG_SYSTEM },
4612 { "global", no_argument, NULL, ARG_GLOBAL },
4613 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4614 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4615 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4616 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4617 { "quiet", no_argument, NULL, 'q' },
4618 { "order", no_argument, NULL, ARG_ORDER },
4619 { "require", no_argument, NULL, ARG_REQUIRE },
4620 { "root", required_argument, NULL, ARG_ROOT },
4621 { "force", no_argument, NULL, ARG_FORCE },
4622 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4623 { "kill-mode", required_argument, NULL, ARG_KILL_MODE }, /* undocumented on purpose */
4624 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4625 { "signal", required_argument, NULL, 's' },
4626 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4627 { "host", required_argument, NULL, 'H' },
4628 { "privileged",no_argument, NULL, 'P' },
4629 { "runtime", no_argument, NULL, ARG_RUNTIME },
4630 { "lines", required_argument, NULL, 'n' },
4631 { "follow", no_argument, NULL, ARG_FOLLOW },
4632 { "output", required_argument, NULL, 'o' },
4633 { NULL, 0, NULL, 0 }
4641 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:", options, NULL)) >= 0) {
4650 puts(PACKAGE_STRING);
4652 puts(SYSTEMD_FEATURES);
4656 if (unit_type_from_string(optarg) >= 0) {
4660 if (unit_load_state_from_string(optarg) >= 0) {
4661 arg_load_state = optarg;
4664 log_error("Unkown unit type or load state '%s'.",
4670 if (!(l = strv_append(arg_property, optarg)))
4673 strv_free(arg_property);
4676 /* If the user asked for a particular
4677 * property, show it to him, even if it is
4688 arg_job_mode = "fail";
4691 case ARG_IGNORE_DEPENDENCIES:
4692 arg_job_mode = "ignore-dependencies";
4696 arg_scope = UNIT_FILE_USER;
4700 arg_scope = UNIT_FILE_SYSTEM;
4704 arg_scope = UNIT_FILE_GLOBAL;
4708 arg_no_block = true;
4712 arg_no_legend = true;
4716 arg_no_pager = true;
4724 arg_dot = DOT_ORDER;
4728 arg_dot = DOT_REQUIRE;
4756 /* -f is short for both --follow and --force! */
4762 arg_no_reload = true;
4766 arg_kill_who = optarg;
4770 arg_kill_mode = optarg;
4774 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4775 log_error("Failed to parse signal string %s.", optarg);
4780 case ARG_NO_ASK_PASSWORD:
4781 arg_ask_password = false;
4785 arg_transport = TRANSPORT_POLKIT;
4789 arg_transport = TRANSPORT_SSH;
4798 if (safe_atou(optarg, &arg_lines) < 0) {
4799 log_error("Failed to parse lines '%s'", optarg);
4805 arg_output = output_mode_from_string(optarg);
4806 if (arg_output < 0) {
4807 log_error("Unknown output '%s'.", optarg);
4816 log_error("Unknown option code '%c'.", c);
4821 if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
4822 log_error("Cannot access user instance remotely.");
4829 static int halt_parse_argv(int argc, char *argv[]) {
4838 static const struct option options[] = {
4839 { "help", no_argument, NULL, ARG_HELP },
4840 { "halt", no_argument, NULL, ARG_HALT },
4841 { "poweroff", no_argument, NULL, 'p' },
4842 { "reboot", no_argument, NULL, ARG_REBOOT },
4843 { "force", no_argument, NULL, 'f' },
4844 { "wtmp-only", no_argument, NULL, 'w' },
4845 { "no-wtmp", no_argument, NULL, 'd' },
4846 { "no-sync", no_argument, NULL, 'n' },
4847 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4848 { NULL, 0, NULL, 0 }
4856 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4857 if (runlevel == '0' || runlevel == '6')
4860 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4868 arg_action = ACTION_HALT;
4872 if (arg_action != ACTION_REBOOT)
4873 arg_action = ACTION_POWEROFF;
4877 arg_action = ACTION_REBOOT;
4902 /* Compatibility nops */
4909 log_error("Unknown option code '%c'.", c);
4914 if (optind < argc) {
4915 log_error("Too many arguments.");
4922 static int parse_time_spec(const char *t, usec_t *_u) {
4926 if (streq(t, "now"))
4928 else if (!strchr(t, ':')) {
4931 if (safe_atou64(t, &u) < 0)
4934 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4943 hour = strtol(t, &e, 10);
4944 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4947 minute = strtol(e+1, &e, 10);
4948 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4951 n = now(CLOCK_REALTIME);
4952 s = (time_t) (n / USEC_PER_SEC);
4955 assert_se(localtime_r(&s, &tm));
4957 tm.tm_hour = (int) hour;
4958 tm.tm_min = (int) minute;
4961 assert_se(s = mktime(&tm));
4963 *_u = (usec_t) s * USEC_PER_SEC;
4966 *_u += USEC_PER_DAY;
4972 static int shutdown_parse_argv(int argc, char *argv[]) {
4979 static const struct option options[] = {
4980 { "help", no_argument, NULL, ARG_HELP },
4981 { "halt", no_argument, NULL, 'H' },
4982 { "poweroff", no_argument, NULL, 'P' },
4983 { "reboot", no_argument, NULL, 'r' },
4984 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
4985 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4986 { NULL, 0, NULL, 0 }
4994 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
5002 arg_action = ACTION_HALT;
5006 arg_action = ACTION_POWEROFF;
5011 arg_action = ACTION_KEXEC;
5013 arg_action = ACTION_REBOOT;
5017 arg_action = ACTION_KEXEC;
5021 if (arg_action != ACTION_HALT)
5022 arg_action = ACTION_POWEROFF;
5035 /* Compatibility nops */
5039 arg_action = ACTION_CANCEL_SHUTDOWN;
5046 log_error("Unknown option code '%c'.", c);
5051 if (argc > optind) {
5052 r = parse_time_spec(argv[optind], &arg_when);
5054 log_error("Failed to parse time specification: %s", argv[optind]);
5058 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
5060 /* We skip the time argument */
5061 if (argc > optind + 1)
5062 arg_wall = argv + optind + 1;
5069 static int telinit_parse_argv(int argc, char *argv[]) {
5076 static const struct option options[] = {
5077 { "help", no_argument, NULL, ARG_HELP },
5078 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5079 { NULL, 0, NULL, 0 }
5082 static const struct {
5086 { '0', ACTION_POWEROFF },
5087 { '6', ACTION_REBOOT },
5088 { '1', ACTION_RESCUE },
5089 { '2', ACTION_RUNLEVEL2 },
5090 { '3', ACTION_RUNLEVEL3 },
5091 { '4', ACTION_RUNLEVEL4 },
5092 { '5', ACTION_RUNLEVEL5 },
5093 { 's', ACTION_RESCUE },
5094 { 'S', ACTION_RESCUE },
5095 { 'q', ACTION_RELOAD },
5096 { 'Q', ACTION_RELOAD },
5097 { 'u', ACTION_REEXEC },
5098 { 'U', ACTION_REEXEC }
5107 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5122 log_error("Unknown option code '%c'.", c);
5127 if (optind >= argc) {
5132 if (optind + 1 < argc) {
5133 log_error("Too many arguments.");
5137 if (strlen(argv[optind]) != 1) {
5138 log_error("Expected single character argument.");
5142 for (i = 0; i < ELEMENTSOF(table); i++)
5143 if (table[i].from == argv[optind][0])
5146 if (i >= ELEMENTSOF(table)) {
5147 log_error("Unknown command '%s'.", argv[optind]);
5151 arg_action = table[i].to;
5158 static int runlevel_parse_argv(int argc, char *argv[]) {
5164 static const struct option options[] = {
5165 { "help", no_argument, NULL, ARG_HELP },
5166 { NULL, 0, NULL, 0 }
5174 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5185 log_error("Unknown option code '%c'.", c);
5190 if (optind < argc) {
5191 log_error("Too many arguments.");
5198 static int parse_argv(int argc, char *argv[]) {
5202 if (program_invocation_short_name) {
5204 if (strstr(program_invocation_short_name, "halt")) {
5205 arg_action = ACTION_HALT;
5206 return halt_parse_argv(argc, argv);
5207 } else if (strstr(program_invocation_short_name, "poweroff")) {
5208 arg_action = ACTION_POWEROFF;
5209 return halt_parse_argv(argc, argv);
5210 } else if (strstr(program_invocation_short_name, "reboot")) {
5212 arg_action = ACTION_KEXEC;
5214 arg_action = ACTION_REBOOT;
5215 return halt_parse_argv(argc, argv);
5216 } else if (strstr(program_invocation_short_name, "shutdown")) {
5217 arg_action = ACTION_POWEROFF;
5218 return shutdown_parse_argv(argc, argv);
5219 } else if (strstr(program_invocation_short_name, "init")) {
5221 if (sd_booted() > 0) {
5222 arg_action = ACTION_INVALID;
5223 return telinit_parse_argv(argc, argv);
5225 /* Hmm, so some other init system is
5226 * running, we need to forward this
5227 * request to it. For now we simply
5228 * guess that it is Upstart. */
5230 execv("/lib/upstart/telinit", argv);
5232 log_error("Couldn't find an alternative telinit implementation to spawn.");
5236 } else if (strstr(program_invocation_short_name, "runlevel")) {
5237 arg_action = ACTION_RUNLEVEL;
5238 return runlevel_parse_argv(argc, argv);
5242 arg_action = ACTION_SYSTEMCTL;
5243 return systemctl_parse_argv(argc, argv);
5246 static int action_to_runlevel(void) {
5248 static const char table[_ACTION_MAX] = {
5249 [ACTION_HALT] = '0',
5250 [ACTION_POWEROFF] = '0',
5251 [ACTION_REBOOT] = '6',
5252 [ACTION_RUNLEVEL2] = '2',
5253 [ACTION_RUNLEVEL3] = '3',
5254 [ACTION_RUNLEVEL4] = '4',
5255 [ACTION_RUNLEVEL5] = '5',
5256 [ACTION_RESCUE] = '1'
5259 assert(arg_action < _ACTION_MAX);
5261 return table[arg_action];
5264 static int talk_upstart(void) {
5265 DBusMessage *m = NULL, *reply = NULL;
5267 int previous, rl, r;
5269 env1_buf[] = "RUNLEVEL=X",
5270 env2_buf[] = "PREVLEVEL=X";
5271 char *env1 = env1_buf, *env2 = env2_buf;
5272 const char *emit = "runlevel";
5273 dbus_bool_t b_false = FALSE;
5274 DBusMessageIter iter, sub;
5275 DBusConnection *bus;
5277 dbus_error_init(&error);
5279 if (!(rl = action_to_runlevel()))
5282 if (utmp_get_runlevel(&previous, NULL) < 0)
5285 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
5286 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
5291 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
5296 if ((r = bus_check_peercred(bus)) < 0) {
5297 log_error("Failed to verify owner of bus.");
5301 if (!(m = dbus_message_new_method_call(
5302 "com.ubuntu.Upstart",
5303 "/com/ubuntu/Upstart",
5304 "com.ubuntu.Upstart0_6",
5307 log_error("Could not allocate message.");
5312 dbus_message_iter_init_append(m, &iter);
5314 env1_buf[sizeof(env1_buf)-2] = rl;
5315 env2_buf[sizeof(env2_buf)-2] = previous;
5317 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
5318 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
5319 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
5320 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
5321 !dbus_message_iter_close_container(&iter, &sub) ||
5322 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
5323 log_error("Could not append arguments to message.");
5328 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
5330 if (error_is_no_service(&error)) {
5335 log_error("Failed to issue method call: %s", bus_error_message(&error));
5344 dbus_message_unref(m);
5347 dbus_message_unref(reply);
5350 dbus_connection_flush(bus);
5351 dbus_connection_close(bus);
5352 dbus_connection_unref(bus);
5355 dbus_error_free(&error);
5360 static int talk_initctl(void) {
5361 struct init_request request;
5365 if (!(rl = action_to_runlevel()))
5369 request.magic = INIT_MAGIC;
5370 request.sleeptime = 0;
5371 request.cmd = INIT_CMD_RUNLVL;
5372 request.runlevel = rl;
5374 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
5376 if (errno == ENOENT)
5379 log_error("Failed to open "INIT_FIFO": %m");
5384 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5385 close_nointr_nofail(fd);
5388 log_error("Failed to write to "INIT_FIFO": %m");
5389 return errno ? -errno : -EIO;
5395 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
5397 static const struct {
5405 int (* const dispatch)(DBusConnection *bus, char **args);
5407 { "list-units", LESS, 1, list_units },
5408 { "list-unit-files", EQUAL, 1, list_unit_files },
5409 { "list-jobs", EQUAL, 1, list_jobs },
5410 { "clear-jobs", EQUAL, 1, daemon_reload },
5411 { "load", MORE, 2, load_unit },
5412 { "cancel", MORE, 2, cancel_job },
5413 { "start", MORE, 2, start_unit },
5414 { "stop", MORE, 2, start_unit },
5415 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5416 { "reload", MORE, 2, start_unit },
5417 { "restart", MORE, 2, start_unit },
5418 { "try-restart", MORE, 2, start_unit },
5419 { "reload-or-restart", MORE, 2, start_unit },
5420 { "reload-or-try-restart", MORE, 2, start_unit },
5421 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5422 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5423 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5424 { "isolate", EQUAL, 2, start_unit },
5425 { "kill", MORE, 2, kill_unit },
5426 { "is-active", MORE, 2, check_unit },
5427 { "check", MORE, 2, check_unit },
5428 { "show", MORE, 1, show },
5429 { "status", MORE, 2, show },
5430 { "help", MORE, 2, show },
5431 { "dump", EQUAL, 1, dump },
5432 { "dot", EQUAL, 1, dot },
5433 { "snapshot", LESS, 2, snapshot },
5434 { "delete", MORE, 2, delete_snapshot },
5435 { "daemon-reload", EQUAL, 1, daemon_reload },
5436 { "daemon-reexec", EQUAL, 1, daemon_reload },
5437 { "show-environment", EQUAL, 1, show_enviroment },
5438 { "set-environment", MORE, 2, set_environment },
5439 { "unset-environment", MORE, 2, set_environment },
5440 { "halt", EQUAL, 1, start_special },
5441 { "poweroff", EQUAL, 1, start_special },
5442 { "reboot", EQUAL, 1, start_special },
5443 { "kexec", EQUAL, 1, start_special },
5444 { "suspend", EQUAL, 1, start_special },
5445 { "hibernate", EQUAL, 1, start_special },
5446 { "default", EQUAL, 1, start_special },
5447 { "rescue", EQUAL, 1, start_special },
5448 { "emergency", EQUAL, 1, start_special },
5449 { "exit", EQUAL, 1, start_special },
5450 { "reset-failed", MORE, 1, reset_failed },
5451 { "enable", MORE, 2, enable_unit },
5452 { "disable", MORE, 2, enable_unit },
5453 { "is-enabled", MORE, 2, unit_is_enabled },
5454 { "reenable", MORE, 2, enable_unit },
5455 { "preset", MORE, 2, enable_unit },
5456 { "mask", MORE, 2, enable_unit },
5457 { "unmask", MORE, 2, enable_unit },
5458 { "link", MORE, 2, enable_unit },
5459 { "switch-root", MORE, 2, switch_root },
5469 left = argc - optind;
5472 /* Special rule: no arguments means "list-units" */
5475 if (streq(argv[optind], "help") && !argv[optind+1]) {
5476 log_error("This command expects one or more "
5477 "unit names. Did you mean --help?");
5481 for (i = 0; i < ELEMENTSOF(verbs); i++)
5482 if (streq(argv[optind], verbs[i].verb))
5485 if (i >= ELEMENTSOF(verbs)) {
5486 log_error("Unknown operation '%s'.", argv[optind]);
5491 switch (verbs[i].argc_cmp) {
5494 if (left != verbs[i].argc) {
5495 log_error("Invalid number of arguments.");
5502 if (left < verbs[i].argc) {
5503 log_error("Too few arguments.");
5510 if (left > verbs[i].argc) {
5511 log_error("Too many arguments.");
5518 assert_not_reached("Unknown comparison operator.");
5521 /* Require a bus connection for all operations but
5523 if (!streq(verbs[i].verb, "enable") &&
5524 !streq(verbs[i].verb, "disable") &&
5525 !streq(verbs[i].verb, "is-enabled") &&
5526 !streq(verbs[i].verb, "list-unit-files") &&
5527 !streq(verbs[i].verb, "reenable") &&
5528 !streq(verbs[i].verb, "preset") &&
5529 !streq(verbs[i].verb, "mask") &&
5530 !streq(verbs[i].verb, "unmask") &&
5531 !streq(verbs[i].verb, "link")) {
5533 if (running_in_chroot() > 0) {
5534 log_info("Running in chroot, ignoring request.");
5538 if (((!streq(verbs[i].verb, "reboot") &&
5539 !streq(verbs[i].verb, "halt") &&
5540 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5541 log_error("Failed to get D-Bus connection: %s",
5542 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5548 if (!bus && !avoid_bus()) {
5549 log_error("Failed to get D-Bus connection: %s",
5550 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5555 return verbs[i].dispatch(bus, argv + optind);
5558 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5560 struct msghdr msghdr;
5561 struct iovec iovec[2];
5562 union sockaddr_union sockaddr;
5563 struct sd_shutdown_command c;
5565 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5572 c.dry_run = dry_run;
5576 sockaddr.sa.sa_family = AF_UNIX;
5577 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
5580 msghdr.msg_name = &sockaddr;
5581 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
5584 iovec[0].iov_base = (char*) &c;
5585 iovec[0].iov_len = offsetof(struct sd_shutdown_command, wall_message);
5587 if (isempty(message))
5588 msghdr.msg_iovlen = 1;
5590 iovec[1].iov_base = (char*) message;
5591 iovec[1].iov_len = strlen(message);
5592 msghdr.msg_iovlen = 2;
5594 msghdr.msg_iov = iovec;
5596 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5597 close_nointr_nofail(fd);
5601 close_nointr_nofail(fd);
5605 static int reload_with_fallback(DBusConnection *bus) {
5608 /* First, try systemd via D-Bus. */
5609 if (daemon_reload(bus, NULL) >= 0)
5613 /* Nothing else worked, so let's try signals */
5614 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5616 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5617 log_error("kill() failed: %m");
5624 static int start_with_fallback(DBusConnection *bus) {
5627 /* First, try systemd via D-Bus. */
5628 if (start_unit(bus, NULL) >= 0)
5632 /* Hmm, talking to systemd via D-Bus didn't work. Then
5633 * let's try to talk to Upstart via D-Bus. */
5634 if (talk_upstart() > 0)
5637 /* Nothing else worked, so let's try
5639 if (talk_initctl() > 0)
5642 log_error("Failed to talk to init daemon.");
5646 warn_wall(arg_action);
5650 static void halt_now(enum action a) {
5652 /* Make sure C-A-D is handled by the kernel from this
5654 reboot(RB_ENABLE_CAD);
5659 log_info("Halting.");
5660 reboot(RB_HALT_SYSTEM);
5663 case ACTION_POWEROFF:
5664 log_info("Powering off.");
5665 reboot(RB_POWER_OFF);
5669 log_info("Rebooting.");
5670 reboot(RB_AUTOBOOT);
5674 assert_not_reached("Unknown halt action.");
5677 assert_not_reached("Uh? This shouldn't happen.");
5680 static int halt_main(DBusConnection *bus) {
5683 if (geteuid() != 0) {
5684 /* Try logind if we are a normal user and no special
5685 * mode applies. Maybe PolicyKit allows us to shutdown
5688 if (arg_when <= 0 &&
5691 (arg_action == ACTION_POWEROFF ||
5692 arg_action == ACTION_REBOOT)) {
5693 r = reboot_with_logind(bus, arg_action);
5698 log_error("Must be root.");
5705 m = strv_join(arg_wall, " ");
5706 r = send_shutdownd(arg_when,
5707 arg_action == ACTION_HALT ? 'H' :
5708 arg_action == ACTION_POWEROFF ? 'P' :
5709 arg_action == ACTION_KEXEC ? 'K' :
5717 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
5719 char date[FORMAT_TIMESTAMP_MAX];
5721 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5722 format_timestamp(date, sizeof(date), arg_when));
5727 if (!arg_dry && !arg_force)
5728 return start_with_fallback(bus);
5731 if (sd_booted() > 0)
5732 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5734 r = utmp_put_shutdown();
5736 log_warning("Failed to write utmp record: %s", strerror(-r));
5746 halt_now(arg_action);
5747 /* We should never reach this. */
5751 static int runlevel_main(void) {
5752 int r, runlevel, previous;
5754 r = utmp_get_runlevel(&runlevel, &previous);
5761 previous <= 0 ? 'N' : previous,
5762 runlevel <= 0 ? 'N' : runlevel);
5767 int main(int argc, char*argv[]) {
5768 int r, retval = EXIT_FAILURE;
5769 DBusConnection *bus = NULL;
5772 dbus_error_init(&error);
5774 log_parse_environment();
5777 r = parse_argv(argc, argv);
5781 retval = EXIT_SUCCESS;
5785 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5786 * let's shortcut this */
5787 if (arg_action == ACTION_RUNLEVEL) {
5788 r = runlevel_main();
5789 retval = r < 0 ? EXIT_FAILURE : r;
5793 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5794 log_info("Running in chroot, ignoring request.");
5800 if (arg_transport == TRANSPORT_NORMAL)
5801 bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error);
5802 else if (arg_transport == TRANSPORT_POLKIT) {
5803 bus_connect_system_polkit(&bus, &error);
5804 private_bus = false;
5805 } else if (arg_transport == TRANSPORT_SSH) {
5806 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5807 private_bus = false;
5809 assert_not_reached("Uh, invalid transport...");
5812 switch (arg_action) {
5814 case ACTION_SYSTEMCTL:
5815 r = systemctl_main(bus, argc, argv, &error);
5819 case ACTION_POWEROFF:
5825 case ACTION_RUNLEVEL2:
5826 case ACTION_RUNLEVEL3:
5827 case ACTION_RUNLEVEL4:
5828 case ACTION_RUNLEVEL5:
5830 case ACTION_EMERGENCY:
5831 case ACTION_DEFAULT:
5832 r = start_with_fallback(bus);
5837 r = reload_with_fallback(bus);
5840 case ACTION_CANCEL_SHUTDOWN:
5841 r = send_shutdownd(0, 0, false, false, NULL);
5844 case ACTION_INVALID:
5845 case ACTION_RUNLEVEL:
5847 assert_not_reached("Unknown action");
5850 retval = r < 0 ? EXIT_FAILURE : r;
5854 dbus_connection_flush(bus);
5855 dbus_connection_close(bus);
5856 dbus_connection_unref(bus);
5859 dbus_error_free(&error);
5863 strv_free(arg_property);
5866 ask_password_agent_close();
5867 polkit_agent_close();